Combining SMS with your email campaigns is one of the most effective moves a marketer can make right now, not because it's trendy, but because the data consistently backs it up. Brands that combine SMS and email see 47% higher customer retention. That single statistic should change how you think about channel strategy.
This guide walks through exactly how to use SMS marketing with email campaigns: when to use each channel, how to coordinate them, what compliance rules apply, and which workflows produce the best results.
Key Takeaways
SMS messages have a 98% open rate, compared to an average email open rate of roughly 37%, making the two channels highly complementary rather than competitive.
SMS outperforms email on open rates, click-through rates, and conversion rates, but the best results come from using both together. Brands that combine SMS and email see 47% higher customer retention.
Research shows that sending a follow-up text asking "Have you read our email?" can increase email open rates by 20 to 30%.
58% of consumers say they are more likely to make a purchase when receiving the same promotion on multiple channels, though 72% still want brands to use text and email differently.
TCPA compliance is non-negotiable. Under the TCPA, businesses must obtain prior express written consent in order to send marketing text messages. Without such consent, businesses face statutory damages of $500 to $1,500 per violation per class member.
Why SMS and Email Work Better Together
Email and SMS each have real limitations when used alone.
The tradeoff with email is that people do not open emails quickly. Only 23% of emails are opened within an hour of delivery, so the channel is ideal for content that is not time-sensitive.
SMS solves the urgency problem, but it has a content constraint. SMS messages are text-only and limited to no more than 160 characters, so you have to keep them short and sweet. That leaves no room for storytelling, visuals, or detailed product information.
Together, the channels cover each other's weaknesses. Email marketing offers rich content capability and room for detailed storytelling. SMS marketing offers immediacy and high open rates to ensure that time-sensitive content is seen quickly. When combined, these two channels complement one another to increase engagement, conversions, and sales.
Combining SMS with your email campaigns is one of the most effective moves a marketer can make right now, not because it's trendy, but because the data consistently backs it up. Brands that combine SMS and email see 47% higher customer retention. That single statistic should change how you think about channel strategy.
This guide walks through exactly how to use SMS marketing with email campaigns: when to use each channel, how to coordinate them, what compliance rules apply, and which workflows produce the best results.
Key Takeaways
SMS messages have a 98% open rate, compared to an average email open rate of roughly 37%, making the two channels highly complementary rather than competitive.
SMS outperforms email on open rates, click-through rates, and conversion rates, but the best results come from using both together. Brands that combine SMS and email see 47% higher customer retention.
Research shows that sending a follow-up text asking "Have you read our email?" can increase email open rates by 20 to 30%.
58% of consumers say they are more likely to make a purchase when receiving the same promotion on multiple channels, though 72% still want brands to use text and email differently.
TCPA compliance is non-negotiable. Under the TCPA, businesses must obtain prior express written consent in order to send marketing text messages. Without such consent, businesses face statutory damages of $500 to $1,500 per violation per class member.
Why SMS and Email Work Better Together
Email and SMS each have real limitations when used alone.
The tradeoff with email is that people do not open emails quickly. Only 23% of emails are opened within an hour of delivery, so the channel is ideal for content that is not time-sensitive.
SMS solves the urgency problem, but it has a content constraint. SMS messages are text-only and limited to no more than 160 characters, so you have to keep them short and sweet. That leaves no room for storytelling, visuals, or detailed product information.
Together, the channels cover each other's weaknesses. Email marketing offers rich content capability and room for detailed storytelling. SMS marketing offers immediacy and high open rates to ensure that time-sensitive content is seen quickly. When combined, these two channels complement one another to increase engagement, conversions, and sales.
Data shows customers who receive both emails and texts buy 2.4 times more often than single-channel recipients.
Understand What Each Channel Is Best For
Before building any cross-channel workflow, you need a clear picture of what each channel does well. Using them interchangeably leads to subscriber fatigue and diminishing returns.
Email is best for:
Long-form content, product launches, and newsletters
Nurturing sequences and onboarding flows
Visual storytelling with images and video
Content that benefits from being saved and revisited
SMS is best for:
Flash sales and time-sensitive promotions
Abandoned cart recovery
Appointment and event reminders
Shipping and delivery notifications
Re-engaging subscribers who have gone cold
Each channel serves a distinct purpose in the customer journey: email offers space for detailed content, storytelling, and brand-building, while SMS provides immediacy and high visibility, ideal for urgent or time-sensitive messages.
For over half of marketers, 53%, the unbeatable open rates of SMS are the key reason for adopting it as a marketing channel. But those open rates only translate into revenue when the message content matches what the channel does best.
5 High-Impact Ways to Combine SMS and Email
Here is where strategy turns into execution. These workflows are proven and can be adapted to nearly any business type.
1. Use SMS to Drive Email Opens
By sending SMS reminders about upcoming email promotions or newsletters, you can pique the interest of your subscribers and increase the chances of your email being opened and acted upon. A quick text letting someone know a new email just landed can boost open rates significantly.
This is one of the simplest integrations to implement and delivers immediate results. Send the email first, wait two to four hours, then send a brief SMS to non-openers referencing the email.
2. Send an SMS Follow-Up to Non-Openers
An email that goes unopened followed by an SMS remarketing message to non-openers is one of the most effective combinations in digital marketing.
Segment your list by email engagement and trigger an SMS only to contacts who did not open within a set window. This avoids over-messaging engaged subscribers while recovering attention from those who missed the email.
3. Use Email for Build-Up, SMS for the Final Nudge
Use emails to alert customers to a pending sale and showcase multiple items that will be discounted. To avoid the risk of this email not being opened, a follow-up SMS message can be sent to the customer with a discount code to promote a sense of urgency and improve conversion rates. Email offers deeper context and multimedia potential, while SMS supports with rapid delivery and its much higher open rates.
Data shows customers who receive both emails and texts buy 2.4 times more often than single-channel recipients.
Understand What Each Channel Is Best For
Before building any cross-channel workflow, you need a clear picture of what each channel does well. Using them interchangeably leads to subscriber fatigue and diminishing returns.
Email is best for:
Long-form content, product launches, and newsletters
Nurturing sequences and onboarding flows
Visual storytelling with images and video
Content that benefits from being saved and revisited
SMS is best for:
Flash sales and time-sensitive promotions
Abandoned cart recovery
Appointment and event reminders
Shipping and delivery notifications
Re-engaging subscribers who have gone cold
Each channel serves a distinct purpose in the customer journey: email offers space for detailed content, storytelling, and brand-building, while SMS provides immediacy and high visibility, ideal for urgent or time-sensitive messages.
For over half of marketers, 53%, the unbeatable open rates of SMS are the key reason for adopting it as a marketing channel. But those open rates only translate into revenue when the message content matches what the channel does best.
5 High-Impact Ways to Combine SMS and Email
Here is where strategy turns into execution. These workflows are proven and can be adapted to nearly any business type.
1. Use SMS to Drive Email Opens
By sending SMS reminders about upcoming email promotions or newsletters, you can pique the interest of your subscribers and increase the chances of your email being opened and acted upon. A quick text letting someone know a new email just landed can boost open rates significantly.
This is one of the simplest integrations to implement and delivers immediate results. Send the email first, wait two to four hours, then send a brief SMS to non-openers referencing the email.
2. Send an SMS Follow-Up to Non-Openers
An email that goes unopened followed by an SMS remarketing message to non-openers is one of the most effective combinations in digital marketing.
Segment your list by email engagement and trigger an SMS only to contacts who did not open within a set window. This avoids over-messaging engaged subscribers while recovering attention from those who missed the email.
3. Use Email for Build-Up, SMS for the Final Nudge
Use emails to alert customers to a pending sale and showcase multiple items that will be discounted. To avoid the risk of this email not being opened, a follow-up SMS message can be sent to the customer with a discount code to promote a sense of urgency and improve conversion rates. Email offers deeper context and multimedia potential, while SMS supports with rapid delivery and its much higher open rates.
This sequence works particularly well for seasonal campaigns, product launches, and limited-time offers.
4. Build Abandoned Cart Flows Across Both Channels
Bluemercury's smart automation recognizes cart abandonment, triggers a rich email first, then only sends an SMS follow-up if needed. This graduated response prevents overwhelming customers while maintaining engagement.
Abandoned cart SMS conversion rates range from 24.6% to 39.4%. Pairing a detailed cart recovery email with a short, direct SMS reminder covering the same cart gives you two shots at conversion without duplicating content.
5. Coordinate Welcome Sequences
New subscribers are your highest-intent audience. A coordinated welcome flow using both channels creates a strong first impression. Start with a welcome email sequence that provides depth, brand story, and value. Follow up with an SMS that confirms the opt-in and delivers a quick incentive such as a discount code or free resource link.
Without a shared calendar, your SMS and email programs will overlap in ways that frustrate subscribers rather than engage them.
A cross-channel calendar helps you avoid message overlap, prevent audience fatigue, clarify the role of each channel, and make the whole process feel more practical and repeatable.
For each campaign, document:
Campaign objective: driving a sale, re-engaging lapsed subscribers, or announcing a new product
Primary channel: which message carries the main content
Supporting channel: which message plays the follow-up or reminder role
Timing gap: how much time between sends (for example, SMS two hours before a sale ends)
Audience segment: which group receives this campaign
CTA: what action you want each message to drive
Most brands send about 2 SMS messages per month per subscriber. High-performing brands send 4 to 6 messages monthly without hurting retention, but only when messages are relevant and well-segmented. Oversending is the fastest way to get unsubscribes.
This sequence works particularly well for seasonal campaigns, product launches, and limited-time offers.
4. Build Abandoned Cart Flows Across Both Channels
Bluemercury's smart automation recognizes cart abandonment, triggers a rich email first, then only sends an SMS follow-up if needed. This graduated response prevents overwhelming customers while maintaining engagement.
Abandoned cart SMS conversion rates range from 24.6% to 39.4%. Pairing a detailed cart recovery email with a short, direct SMS reminder covering the same cart gives you two shots at conversion without duplicating content.
5. Coordinate Welcome Sequences
New subscribers are your highest-intent audience. A coordinated welcome flow using both channels creates a strong first impression. Start with a welcome email sequence that provides depth, brand story, and value. Follow up with an SMS that confirms the opt-in and delivers a quick incentive such as a discount code or free resource link.
Without a shared calendar, your SMS and email programs will overlap in ways that frustrate subscribers rather than engage them.
A cross-channel calendar helps you avoid message overlap, prevent audience fatigue, clarify the role of each channel, and make the whole process feel more practical and repeatable.
For each campaign, document:
Campaign objective: driving a sale, re-engaging lapsed subscribers, or announcing a new product
Primary channel: which message carries the main content
Supporting channel: which message plays the follow-up or reminder role
Timing gap: how much time between sends (for example, SMS two hours before a sale ends)
Audience segment: which group receives this campaign
CTA: what action you want each message to drive
Most brands send about 2 SMS messages per month per subscriber. High-performing brands send 4 to 6 messages monthly without hurting retention, but only when messages are relevant and well-segmented. Oversending is the fastest way to get unsubscribes.
Treating your SMS and email lists as separate databases is a missed opportunity. Marketers can build more complete and precise profiles for each customer by connecting their email and SMS programs together. Then if a shopper gets a new email address, their data can be combined with their existing profile via their phone number, so you can continue to personalize your communications effectively.
Using generative AI to create hyperpersonalized marketing messages and microsegments for direct channels like email and SMS can improve overall conversion rates by up to 40% compared to traditional segmentation.
Apply behavioral data from both channels to your targeting. If a subscriber clicks a link in an email but does not purchase, follow up with an SMS that references the specific product. If an SMS subscriber has never opened a welcome text, adjust their email frequency before attempting re-engagement via SMS.
Just as you will segment your mailing lists based on customer preferences and demographics, you will want to bring this same data-driven approach to your SMS communications.
For more on making personalization work across touchpoints, see our breakdown of email personalization techniques that boost conversions 47%.
SMS Compliance: What You Must Know Before You Send
Compliance is not optional, and the regulatory landscape for SMS tightened significantly in 2024 and 2025.
Under the TCPA, businesses must obtain prior express written consent in order to send marketing text messages. This means explicit opt-in, not implied permission based on a purchase or a website visit.
Clear express written consent is required before sending any promotional SMS. Verbal or implied consent does not suffice under TCPA. Transparent disclosures must inform users about the types of messages they will receive and how often, and this must happen before they opt in. Every message must include clear instructions on how to unsubscribe, such as "Reply STOP to opt-out."
Key 2025 updates to TCPA compliance you need to act on:
The FCC's updated consent revocation rules took effect on April 11, 2025. Consumers can now revoke consent through any reasonable method, not just keyword replies. Businesses must accept opt-outs via text, email, phone calls, website forms, chatbots, or in-person requests.
Businesses must honor opt-out requests within 10 business days, down from the previous 30-day standard.
Recent settlements illustrate the financial stakes of non-compliance: Clover Network was fined $15 million in 2024 for sending over 1 million unsolicited marketing texts without consent, and Cash App settled for $12.5 million in 2025 for unsolicited referral program texts.
Keep documented records of every opt-in, including timestamps. When combining SMS and email marketing, it is important to respect the privacy and consent rules in every market you operate in. Data protection regulations vary by country, and failure to comply can damage trust, harm your brand, or lead to legal consequences.
Treating your SMS and email lists as separate databases is a missed opportunity. Marketers can build more complete and precise profiles for each customer by connecting their email and SMS programs together. Then if a shopper gets a new email address, their data can be combined with their existing profile via their phone number, so you can continue to personalize your communications effectively.
Using generative AI to create hyperpersonalized marketing messages and microsegments for direct channels like email and SMS can improve overall conversion rates by up to 40% compared to traditional segmentation.
Apply behavioral data from both channels to your targeting. If a subscriber clicks a link in an email but does not purchase, follow up with an SMS that references the specific product. If an SMS subscriber has never opened a welcome text, adjust their email frequency before attempting re-engagement via SMS.
Just as you will segment your mailing lists based on customer preferences and demographics, you will want to bring this same data-driven approach to your SMS communications.
For more on making personalization work across touchpoints, see our breakdown of email personalization techniques that boost conversions 47%.
SMS Compliance: What You Must Know Before You Send
Compliance is not optional, and the regulatory landscape for SMS tightened significantly in 2024 and 2025.
Under the TCPA, businesses must obtain prior express written consent in order to send marketing text messages. This means explicit opt-in, not implied permission based on a purchase or a website visit.
Clear express written consent is required before sending any promotional SMS. Verbal or implied consent does not suffice under TCPA. Transparent disclosures must inform users about the types of messages they will receive and how often, and this must happen before they opt in. Every message must include clear instructions on how to unsubscribe, such as "Reply STOP to opt-out."
Key 2025 updates to TCPA compliance you need to act on:
The FCC's updated consent revocation rules took effect on April 11, 2025. Consumers can now revoke consent through any reasonable method, not just keyword replies. Businesses must accept opt-outs via text, email, phone calls, website forms, chatbots, or in-person requests.
Businesses must honor opt-out requests within 10 business days, down from the previous 30-day standard.
Recent settlements illustrate the financial stakes of non-compliance: Clover Network was fined $15 million in 2024 for sending over 1 million unsolicited marketing texts without consent, and Cash App settled for $12.5 million in 2025 for unsolicited referral program texts.
Keep documented records of every opt-in, including timestamps. When combining SMS and email marketing, it is important to respect the privacy and consent rules in every market you operate in. Data protection regulations vary by country, and failure to comply can damage trust, harm your brand, or lead to legal consequences.
Choosing the Right Platform
Managing SMS and email on separate platforms creates data silos that limit personalization and complicate compliance. SMS and email marketing are most effective when combined strategically on a single platform, not treated as separate channels. A coordinated approach drives higher engagement, conversion rates, and customer lifetime value.
When evaluating platforms, look for:
Unified subscriber profiles that merge email and SMS data
Automated workflows that trigger messages across both channels
Compliance tools including opt-in management and suppression lists
Cross-channel reporting that shows combined campaign performance
A/B testing capabilities for both channel types
SMS could no longer exist in isolation in 2025, with omnichannel integration becoming the standard and integral to campaign success. Leading brands are integrating SMS with other critical channels such as email, WhatsApp, and social media to create unified customer journeys.
Measure What Actually Matters
Cross-channel campaigns require a different measurement framework than single-channel sends. Avoid the trap of measuring SMS and email performance in isolation.
Track these metrics at the campaign level:
Combined conversion rate: what percentage of contacts who received both messages converted, versus single-channel recipients
Revenue per subscriber: across both channels combined
Unsubscribe rate by channel: a high SMS opt-out rate signals message fatigue or poor targeting
Lift from SMS follow-up: compare open and conversion rates for emails sent with and without an SMS follow-up
High-performing teams are 1.5 times more likely to frequently reply to customers via email and text compared with underperforming teams, according to the Salesforce State of Marketing report.
Sending half of your audience a flash sale notification via email and the other half via SMS allows you to discover that your audience responds far better to one channel for certain types of news. Regular A/B testing across channels improves your sequencing over time.
Frequently Asked Questions
How often should I send SMS messages alongside my email campaigns?
SMS marketing data shows that most customers are comfortable with one to two texts per week. Going beyond this can lead to fatigue and unsubscribes. For combined campaigns, treat SMS as the high-priority nudge rather than a regular cadence. Send an SMS when the timing or urgency genuinely warrants it, not as a default follow-up to every email.
Do I need separate opt-ins for SMS and email?
Yes. For an SMS marketing campaign to be TCPA-compliant, businesses must obtain express written consent from consumers before sending promotional or automated messages. This means consumers must take a clear affirmative action to opt in. An email opt-in does not cover SMS, and vice versa. Collect and document consent for each channel separately.
What types of messages work best via SMS versus email?
Managing SMS and email on separate platforms creates data silos that limit personalization and complicate compliance. SMS and email marketing are most effective when combined strategically on a single platform, not treated as separate channels. A coordinated approach drives higher engagement, conversion rates, and customer lifetime value.
When evaluating platforms, look for:
Unified subscriber profiles that merge email and SMS data
Automated workflows that trigger messages across both channels
Compliance tools including opt-in management and suppression lists
Cross-channel reporting that shows combined campaign performance
A/B testing capabilities for both channel types
SMS could no longer exist in isolation in 2025, with omnichannel integration becoming the standard and integral to campaign success. Leading brands are integrating SMS with other critical channels such as email, WhatsApp, and social media to create unified customer journeys.
Measure What Actually Matters
Cross-channel campaigns require a different measurement framework than single-channel sends. Avoid the trap of measuring SMS and email performance in isolation.
Track these metrics at the campaign level:
Combined conversion rate: what percentage of contacts who received both messages converted, versus single-channel recipients
Revenue per subscriber: across both channels combined
Unsubscribe rate by channel: a high SMS opt-out rate signals message fatigue or poor targeting
Lift from SMS follow-up: compare open and conversion rates for emails sent with and without an SMS follow-up
High-performing teams are 1.5 times more likely to frequently reply to customers via email and text compared with underperforming teams, according to the Salesforce State of Marketing report.
Sending half of your audience a flash sale notification via email and the other half via SMS allows you to discover that your audience responds far better to one channel for certain types of news. Regular A/B testing across channels improves your sequencing over time.
Frequently Asked Questions
How often should I send SMS messages alongside my email campaigns?
SMS marketing data shows that most customers are comfortable with one to two texts per week. Going beyond this can lead to fatigue and unsubscribes. For combined campaigns, treat SMS as the high-priority nudge rather than a regular cadence. Send an SMS when the timing or urgency genuinely warrants it, not as a default follow-up to every email.
Do I need separate opt-ins for SMS and email?
Yes. For an SMS marketing campaign to be TCPA-compliant, businesses must obtain express written consent from consumers before sending promotional or automated messages. This means consumers must take a clear affirmative action to opt in. An email opt-in does not cover SMS, and vice versa. Collect and document consent for each channel separately.
What types of messages work best via SMS versus email?
Email equals depth: rich content, storytelling, visuals, and room for detailed messaging. SMS equals immediacy: urgent updates, fast action, and high visibility directly on a customer's phone. Use SMS for flash sales, cart abandonment alerts, event reminders, and shipping updates. Use email for product launches, newsletters, educational content, and multi-step promotions.
Can SMS marketing really improve my email open rates?
According to recent reports, following up your promotional emails with an SMS message can increase open rates between 20 and 30%. The most effective version of this is triggering an SMS only to subscribers who did not open the email within a few hours, keeping the message brief and referencing the email directly.
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Email equals depth: rich content, storytelling, visuals, and room for detailed messaging. SMS equals immediacy: urgent updates, fast action, and high visibility directly on a customer's phone. Use SMS for flash sales, cart abandonment alerts, event reminders, and shipping updates. Use email for product launches, newsletters, educational content, and multi-step promotions.
Can SMS marketing really improve my email open rates?
According to recent reports, following up your promotional emails with an SMS message can increase open rates between 20 and 30%. The most effective version of this is triggering an SMS only to subscribers who did not open the email within a few hours, keeping the message brief and referencing the email directly.
