Programmatic email forwarding with SRS
Catch-all and alias Routes that forward to any external address - created by API, unlimited domains, with SRS rewrite so SPF and DMARC survive the forward.
Catch-all and alias Routes
Forward *@your-domain or alias@your-domain to any external mailbox. Define it once via POST /v1/routes.
SRS keeps deliverability
Forwarding naturally breaks SPF. ThreadCamp rewrites the envelope sender (SRS) so the forwarded message still passes SPF and DMARC alignment at the destination.
Inbound to code as well
Want mail to trigger code rather than land in a mailbox? Set callback_url on an inbox and inbound mail delivers an HMAC-signed email.received payload to your endpoint.
This is part of ThreadCamp, the email API for AI agents: programmatic inboxes, Resend-compatible sending and forwarding Routes behind one key.
Keep reading
Custom domain email via API
Add your domain, get the full MX/SPF/DKIM/DMARC record set, verify, and start creating addresses programmatically. Threa...
Email API for developers
A single REST API - and MCP server - for the whole email stack. Drop-in Resend-compatible sending, real inbound inboxes,...
Email infrastructure platform
Identities, sending, receiving and routing in one platform, EU-resident by default. Stop assembling AgentMail plus Resen...
Questions
How does email forwarding work with SPF and DKIM?
A naive forward fails SPF because the forwarding server isn't authorised for the original domain. ThreadCamp applies SRS - rewriting the envelope sender to a domain it controls - so SPF passes and DMARC stays aligned.
Can I forward a whole domain (catch-all)?
Yes. Create a Route with match '*@your-domain.com' and a destination address - all mail to the domain is forwarded there with SRS applied.
Give your agent an inbox in the next minute.
No credit card. Full API, MCP and webhooks on the free tier.