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27 lines
933 B
Markdown
27 lines
933 B
Markdown
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# Forward-Only mailserver with LDAP authentication
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## Building a Forward-Only mailserver
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A **forward-only** mailserver does not have any local mailboxes. Instead, it has only aliases that forward emails to external email accounts (for example to a gmail account). You can also send email from the localhost (the computer where the mailserver is installed), using as sender any of the alias addresses.
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The important settings for this setup (on `mailserver.env`) are these:
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```
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PERMIT_DOCKER=host
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ENABLE_POP3=
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ENABLE_CLAMAV=0
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SMTP_ONLY=1
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ENABLE_SPAMASSASSIN=0
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ENABLE_FETCHMAIL=0
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```
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Since there are no local mailboxes, we use `SMTP_ONLY=1` to disable `dovecot`. We disable as well the other services that are related to local mailboxes (`POP3`, `ClamAV`, `SpamAssassin`, etc.)
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We can create aliases with `./setup.sh`, like this:
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```
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./setup.sh alias add <alias-address> <external-email-account>
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```
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## Authenticating with LDAP
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