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Steffen
Asked: 2015-12-23 08:07:43 +0800 CST

postfix: aliases will be ignored

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I have a server which is configured as a postfix MTA and on which runs also a munin node. In /etc/aliases I have add:

root:    [email protected]

in the main.cf of postfix is configured:

mydomain = my.domain
myorigin = $mydomain
alias_database = hash:/etc/aliases
relay_domains = my.domain
append_at_myorigin = no
...

After each change of aliases or postfix configuration files I have called newaliases or postmap <cfgfile> and restart postfix.

Each time if munin will send a (error) email I get this in the maillog file:

Dec 22 16:45:19 myserver postfix/pickup[21509]: 5CFBA2011E0: uid=995  rom=<munin>
Dec 22 16:45:19 myserver postfix/cleanup[22094]: 5CFBA2011E0: 
    message-id=<[email protected]>
Dec 22 16:45:19 myserver postfix/qmgr[21510]: 5CFBA2011E0: from=<munin>, size=999, nrcpt=1 
    (queue active)
Dec 22 16:45:20 myserver postfix/smtp[22099]: 5CFBA2011E0: to=<[email protected]>, 
    orig_to=<root>, relay=internal.my.domain[XXX.182.189.136]:25, delay=4.2, 
    delays=3/0.01/1.1/0.09, dsn=5.1.1, status=bounced (host 
    internal.my.domain[XXX.182.189.136] said: 550 5.1.1 <[email protected]>: Recipient address 
    rejected: User unknown in virtual mailbox table (in reply to RCPT TO command))
Dec 22 16:45:20 myserver postfix/cleanup[22094]: A98B72012D2: 
    message-id=<[email protected]>
Dec 22 16:45:20 myserver postfix/bounce[22100]: 5CFBA2011E0: sender non-delivery 
    notification: A98B72012D2

Don't understand why "root" (orig_to) was not replaced with "[email protected]" like it was specified in the aliases file. Seems postfix append the myorigin value to "root". Not sure why because I have also specified append_at_myorigin = no.

Whats going on here? I want to replace the "root" address with "[email protected]". How can I do that?

postfix

2 Answers

  1. In my case I want to use /etc/aliases (because some packages uses it so you have to verify changes and replicate to /etc/postfix/virtual

    The problem why it doesn't work is in myorigin. If you set myorigin, all mails sent to root, nobody and other locals are changed automagicaly into root@myorigin

    in my case: /etc/aliases:

    nobody:   root
root: [email protected]

    /etc/mailname:

    myhost.example.com

    /etc/postfix/main.cf:

    myorigin = /etc/mailname
myhostname = othername.example.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
mydestination = othername, localhost.localdomain, localhost

    In this case all mails sent to nobody are changed into [email protected] (because of myorigin) and then sent out somewhere.

    I have to change mydestination:

    mydestination = myhost.example.com, othername, localhost.localdomain, localhost

    and now mail sent to nobody is redirected to root, which changes into [email protected], but because it is in mydestination it looks into aliases and changed into [email protected], but because it is in mydestination it looks into aliases, and redirected into [email protected], which isn't in mydestination and it is sent where it should be sent ;D

    • 18
  2. Best Answer

    Not sure about what "my.domain" is exactly, but aliases are only used for local deliveries.

    Instead, you probably want to use the virtual maps.

    As root (or sudo)

    In /etc/postfix/virtual (or where virtual is)

    root    [email protected]

    In main.cf

    virtual_maps = hash:/etc/postfix/virtual

    or (modern versions of postfix)

    virtual_alias_maps = hash:/etc/postfix/virtual

    after the virtual map has been modified

    # postmap /etc/postfix/virtual
# postfix reload

    Beware that all mail for "root" will be redirected to "[email protected]".

    • 11