Resend native. Same audience builder. Same templates. Same analytics. Email becomes the long-form companion to WhatsApp's real-time, instead of a separate tool fighting for attention.
UNIFIED, NOT DUPLICATED
Most teams run email and WhatsApp on different tools, with different contact lists, different templates, and different analytics. Lists fall out of sync. Customers get the same offer twice (or not at all). Reporting is a CSV-export-and-pivot exercise.
InboxChange collapses both into one stack. The audience filter you wrote for a WhatsApp broadcast works the same way for an email blast. The templates that worked on one channel are right there for the other. Reporting unifies on a single conversion table.
MULTI-CHANNEL SEQUENCES
A sequence step doesn't have to be all email or all WhatsApp. Day 1 can be a long-form welcome email. Day 3 can be a quick WhatsApp nudge. Day 7 can be a video tour over email with a 'reply YES on WhatsApp to book' CTA.
The visual flow editor lets you design these without writing code. Branch on whether the customer opened the email. Stop the WhatsApp follow-up if they replied to the email already. Customers experience it as one coordinated conversation.
FULL EMAIL FEATURE SET
Resend-native, but supports SendGrid / SES / Mailgun / SMTP if you have an existing setup.
Cleanest email API in the market. Configure once, send forever. SendGrid, SES, Mailgun, custom SMTP all also supported.
Same audience filters work for email and WhatsApp. Build once, send across channels. No duplicate list management.
A drip can have email step → WhatsApp step → email step. The customer gets the right channel at the right moment.
Email templates and WhatsApp templates live side by side. Use both for the same campaign with channel-specific bodies.
One-click DKIM/SPF DNS record generators. Sender warmup guidance built in. Get out of spam folders the right way.
Resend's per-email cost (~$0.0004) tracked against your account. See total monthly email spend per client in agency mode.
Per-template open rates, click-throughs, replies. Compare email vs WhatsApp engagement on the same campaign side-by-side.
Each contact has a best-time-to-open profile from past behaviour. The scheduler queues sends for that window automatically.
Hard bounces auto-suppress. Spam complaints flag the contact. Sender reputation stays clean without manual list-hygiene work.
WHEN EMAIL OUTPERFORMS WHATSAPP
Brand-narrative emails, customer-spotlight features, founder letters. Length and rich layout work better in email than in chat.
Records customers want to keep. Email's archive-and-search behaviour is irreplaceable for transactional documentation.
Weekly or monthly value drops where the open is asynchronous. Email's lower expectation of immediate response is the feature.
Markets where WhatsApp adoption is patchy (Western Europe, parts of US). Email reaches every audience, every device.