Email marketing
Send through your own SES. Stop paying per contact.
EmailSendX is the campaign builder, A/B tester, deliverability dashboard, and analytics stack — pointed at the sending account you already pay for. Eight providers. One bill that doesn't grow with your list.
No credit card. Connect SES in 5 minutes. Cancel any time from workspace settings.
Bring your own sender
Eight providers. Same dashboard.
Plug in whichever sender you already pay for — or run two side-by-side. Bulk through SES, transactional through Postmark, warm 1:1 through Gmail. We don't care. Your campaign builder, A/B tests, and analytics stay the same.
- Amazon SES
AWS native
- SendGrid
Volume sender
- Brevo
EU-friendly
- Mailgun
Developer first
- Postmark
Transactional king
- Resend
Modern API
- Gmail (OAuth)
For warm 1:1
- Generic SMTP
Anything else
Connect more than one per workspace. Pick the right sender per campaign — we route the mail and stitch the analytics back together.
Built where the incumbents can't follow.
Mailchimp and Klaviyo charge per subscriber because they own the infrastructure. EmailSendX is the control plane — you own the sending pipe, we never mark up a single send. Drill into each row below — the scorecards above are a summary of this same checklist.
| Capability | Winner EEmailSendX | Mailchimp | KKlaviyo | ACActiveCampaign |
|---|---|---|---|---|
Pricing model | ||||
No per-contact pricing Only us Your cost doesn't balloon when your list grows. | ||||
Flat platform fee Only us Predictable monthly line-item for finance. | ||||
Infrastructure ownership | ||||
Bring your own SES / SMTP Only us Cut email cost 80–95% and keep control of your IPs. | ||||
Own your deliverability & IP reputation Only us Your warm-up, your sender rep — not shared. | ||||
Exportable data · no lock-in Only us Leave any time with a full CSV + webhook history. | ||||
Multi-client / agency | ||||
Unlimited workspaces / brands Only us One account, every client — no juggling logins. | ||||
White-label client dashboards Only us Clients see your brand, never ours. | Partial | |||
Suppression list across workspaces One unsubscribe protects every client instantly. | Partial | |||
Builder & DX | ||||
Drag-and-drop + MJML + HTML editor Only us Designers and devs work in the same tool. | Partial | Partial | Partial | |
Visual automation workflows Branching, delays, conditions — without a dev. | ||||
AI subject + body assist Only us Draft and rewrite without leaving the composer. | Partial | Partial | Partial | |
Workflow & CRM | ||||
Built-in CRM with pipelines & deals Only us Stalled deal triggers email automations natively. | Partial | Partial | ||
A/B testing (subject, sender, send-time, content) Pick winners on more than just a subject line. | Partial | Partial | ||
Campaign approval workflow for teams Only us Draft → Submit → Approve → Send for agency review. | Partial | |||
Deliverability
If your email lands in spam, none of this matters.
Cheap sending is worthless if half your campaign goes to the promo tab. Every EmailSendX workspace runs the deliverability checks an enterprise ESP would charge you $99/month for, baked into the dashboard.
- BIMI, SPF, DKIM, and DMARC verified on every connected domain — broken auth gets flagged before the campaign goes out.
- IP warmup schedules that ramp volume gradually so a fresh IP doesn't torch your sender reputation on day one.
- RFC 8058 one-click unsubscribe headers, suppression list, and double opt-in forms baked in — Gmail and Yahoo bulk-sender rules covered.
- Live blacklist monitoring across the major RBLs. If you land on Spamhaus, you find out from us, not from a client.
- DKIM aligned on agency.com2m ago
- DMARC reporting active14m ago
- IP warmup at 92%1h ago
- No blacklist hits across 14 RBLs3h ago
Common questions
Quick answers.
Why is "bring your own sender" cheaper than Mailchimp or Klaviyo?+
Most tools charge per contact, so a 100,000-subscriber list runs $500+/month before you send a single email. EmailSendX charges a flat platform fee and routes mail through your own SES (≈$0.10 per 1,000 emails) or SMTP. Agencies typically cut email cost 80–95% after switching.
Which sending providers do you support?+
Eight: Amazon SES, generic SMTP, SendGrid, Brevo, Mailgun, Postmark, Resend, and Gmail OAuth. You can connect more than one per workspace and pick the right sender per campaign — transactional through Postmark, bulk through SES, for example.
Can I A/B test more than the subject line?+
Yes. Test subject lines, sender names, send times, or whole content variants in a single experiment. Pick a sample size, set the metric (opens, clicks, conversions), and the auto-winner ships the leader to the rest of the list. No spreadsheet maths.
How do you handle deliverability and compliance?+
We run SPF/DKIM/DMARC checks on every connected domain, support BIMI, schedule IP warmups, monitor major blacklists, and add RFC 8058 one-click unsubscribe headers automatically. Suppression list, double opt-in forms, and CAN-SPAM/GDPR-compliant footers are baked in.
Is there an API?+
Yes — a full REST API for contacts, lists, campaigns, automations, and templates, plus webhooks for opens, clicks, bounces, complaints, and unsubscribes. Pair them with the multi-workspace model to spin up new client accounts programmatically.
Plug in your sender. Send your first campaign tonight.
Connect SES, SMTP, or any of the eight supported providers in five minutes. Send a real campaign to a real list. Decide for yourself whether it earns its keep.
Start free