MailHog
Mail ServersEmail testing tool with a fake SMTP server
Replaces Mailtrap
Best Single-User Mail Servers for self-hosting
The 4 best Single-User mail servers you can self-host, ranked by community traction.
Mailpile
Mail ServersPrivacy-focused, searchable email client
Replaces Gmail
MailCatcher
Mail ServersCatch-all SMTP server for inspecting test email
Replaces Mailtrap
Nullmailer
Mail ServersSimple relay-only mail transfer agent
Replaces Sendmail
No apps match these filters.
Every option here is open-source and self-hostable, tagged Single-User within the mail servers category. Compare them on the individual app pages for setup difficulty and resource requirements.