Add built-in Mail Server / Mail Service Support in Dokploy

[fabriceyopa]

Hello Dokploy team — first of all, thank you for building and maintaining such a promising open-source PaaS alternative.

I want to propose adding support for hosting a mail server/mail service as a first-class feature inside Dokploy. The idea is to let users deploy and manage their own email infrastructure (SMTP, IMAP/POP, webmail, etc.) via Dokploy in a way similar to how Cloudron integrates email.

Below are motivations, use-cases, and a rough sketch of how this could be architected.

Why a built-in mail service is valuable

1. Full autonomy & ownership
   Many users self-host their applications, but still rely on external email services (Gmail, SendGrid, etc.). Having email integrated means they can fully own their stack.

2. Better integration
   • Automatic DNS / MX / SPF / DKIM / DMARC management
   • Seamless certificate management (e.g. via Let’s Encrypt)
   • Sending transactional email from apps (e.g. password resets) with local SMTP
   • Inbound mail forwarding, aliases, webmail, etc.

3. Competitive differentiation
   Cloudron is often praised for its built-in email support. Having this in Dokploy would strengthen its position as a full self-hosted PaaS.

4. User convenience
   Many users already deploy webapps, databases, etc. Adding email as a first-class service would reduce friction and the need to spin up a separate mail server or external service.

[djsisson]

Self hosted email servers are highly likely to get blocked, either directly by the hosting provider or from the receiving mail server even when correctly configured

I'm not saying it's not possible, it's just far easier to use ses