Custom MAIL FROM Domains
Take full control of your email envelope sender. Your domain, your reputation, your deliverability.
Try 1000 Free Credits →With vs. without Custom MAIL FROM
Without Custom MAIL FROM
From: you@yourdomain.com
Return-Path: bounce@smtp-provider.com
MAIL FROM: smtp-provider.com
SPF: pass (smtp-provider.com)
DMARC: FAIL (domain mismatch)The envelope sender shows the provider's domain. SPF passes for the wrong domain. DMARC alignment fails.
With Custom MAIL FROM
From: you@yourdomain.com
Return-Path: bounce@mail.yourdomain.com
MAIL FROM: mail.yourdomain.com
SPF: pass (yourdomain.com)
DMARC: PASS (aligned)The envelope sender uses your domain. SPF passes for your domain. DMARC alignment succeeds.
Why Custom MAIL FROM matters
Brand Consistency
Every part of your email -- from the visible sender to the envelope -- reflects your brand. No third-party domains visible to recipients or mail servers.
DMARC Alignment
Custom MAIL FROM enables SPF alignment with your sending domain. Combined with DKIM, you achieve full DMARC compliance even with strict policies.
Improved Deliverability
Mailbox providers reward properly aligned authentication. Custom MAIL FROM helps your emails pass authentication checks that improve inbox placement.
Professional Bounce Handling
Bounce messages return to your domain instead of a third-party address. Maintain control over bounce processing and reputation management.
Set up in four simple steps
Choose Your Subdomain
Select a subdomain for your MAIL FROM address, such as mail.yourdomain.com or bounce.yourdomain.com.
Add DNS Records
We provide the MX and SPF records for your subdomain. Publish them in your DNS to enable bounce processing and authentication.
Verify Configuration
Our team verifies that your DNS records are published correctly and that authentication passes end-to-end.
Start Sending
Your emails now use your custom MAIL FROM domain. DMARC alignment is automatic for every message you send.
Take control of your envelope sender
Custom MAIL FROM domains included with every plan. Start with 1,000 free credits.