Custom Domain Email for AI Agents

Yes. Add your domain, set up the DNS records LobsterMail gives you, and your agent sends from addresses like support@yourcompany.com. Available on the Builder plan ($9/mo) and above.

Three types: MX records for receiving, a TXT record for SPF, and CNAME records for DKIM. LobsterMail gives you the exact values to add. Copy-paste them into your DNS provider.

Depends on your DNS provider. Most propagate within minutes. Some take up to 48 hours. LobsterMail runs a background verification worker that checks periodically, so you don't need to babysit it.

Yes. LobsterMail provisions SES identities per domain with full DKIM signing. SPF is handled via the TXT record. Your agent's emails pass authentication checks, which means they land in inboxes instead of spam folders.

Yes. Builder gets 3 domains, Pro gets 5, Scale gets 25. Each domain is independently verified and can have its own set of agent inboxes.

The verifyDomain() call returns which records passed and which didn't. Fix the failing records in your DNS provider and verify again. The background worker also retries periodically.

Not if your DNS records are set up correctly. LobsterMail configures SPF and DKIM so your agent's emails pass authentication. New domains may need a brief warmup period to build sender reputation.

Yes. Each inbox is tied to a specific domain. You can have agent-a@sales.com, agent-b@support.com, and agent-c@ops.com all on the same account.

Builder ($9/mo) and above. Free accounts use @lobstermail.ai addresses. Custom domains require DNS verification and SES identity provisioning, which is why they're on paid plans.

Create a new inbox on the new domain. The old inbox stays active until you delete it. Email addresses are tied to inboxes, so switching means creating a new address.

Yes. You can add subdomains like agents.yourcompany.com and create inboxes on them. Each subdomain goes through the same DNS verification process.

It improves it. Sending from your own domain with proper SPF and DKIM builds reputation on your domain, not lobstermail.ai. Replies go back to your domain too, which looks more professional to recipients.