Updated Configure Aliases (markdown)

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Jean-Denis Vauguet 2020-05-31 04:52:34 +02:00
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@ -2,36 +2,43 @@ Please first read [Postfix documentation on virtual aliases](http://www.postfix.
### Configuring aliases ### Configuring aliases
Aliases are managed in `config/postfix-virtual.cf`. Aliases are managed in `/tmp/docker-mailserver/postfix-aliases.cf`.
An alias is a full email address that will be:
* delivered to an existing account in `config/postfix-accounts.cf` An alias is a _full_ email address that will either be:
* delivered to an existing account registered in `/tmp/docker-mailserver/postfix-accounts.cf`
* redirected to one or more other email addresses * redirected to one or more other email addresses
Alias and target are space separated. Alias and target are space separated.
Example: Example (on a server with domain.tld as its domain):
# Alias to existing account # Alias delivered to an existing account
alias1@domain.tld user1@domain.tld alias1@domain.tld user1@domain.tld
# Forward to external email address # Alias forwarded to an external email address
alias2@domain.tld external@gmail.com alias2@domain.tld external@gmail.com
### Configuring regexp aliases ### Configuring regexp aliases
Additional regexp aliases can be configured by placing them into `config/postfix-regexp.cf`. The regexp aliases get evaluated after the virtual aliases (postfix-virtual.cf). For example, the following `config/postfix-regexp.cf` causes all email to "test" users to be delivered to qa@example.com: Additional regexp aliases can be configured by placing them into `config/postfix-regexp.cf`. The regexp aliases get evaluated after the virtual aliases (/tmp/docker-mailserver/postfix-aliases.cf).
For example, the following `config/postfix-regexp.cf` causes all email to "test" users to be delivered to qa@example.com:
``` ```
/^test[0-9][0-9]*@example.com/ qa@example.com /^test[0-9][0-9]*@example.com/ qa@example.com
``` ```
### Address tags as an alternative ### Address tags (extension delimiters) as an alternative to aliases
Postfix supports address tags - i.e. address+tag@example.com will end up at address@example.com. This is configured by default and the (configurable) separator is set to `+`. Postfix supports so-called address tags, in the form of plus (+) tags - i.e. address+tag@example.com will end up at address@example.com.
For more info, see [How to use Address Tagging (user+tag@example.com) with Postfix](https://www.stevejenkins.com/blog/2011/03/how-to-use-address-tagging-usertagexample-com-with-postfix/). This is configured by default and the (configurable !) separator is set to `+`.
For more info, see [How to use Address Tagging (user+tag@example.com) with Postfix](https://www.stevejenkins.com/blog/2011/03/how-to-use-address-tagging-usertagexample-com-with-postfix/) and the [official documentation](http://www.postfix.org/postconf.5.html#recipient_delimiter).
Note that if you do decide to change the configurable separator, you must add the same line to *both* `config/postfix-main.cf` and `config/dovecot.cf`, because Dovecot is acting as the delivery agent. For example, to switch to `-`, add:
Note that if you do decide to change the configurable separator, you must add the same line to *both* `config/postfix-main.cf` and `config/dovecot.cf`, because Dovecot is acting as the delivery agent. For example, to switch to `-`, add
``` ```
recipient_delimiter = - recipient_delimiter = -
``` ```