Change dovecot hostname

Edgar Pettijohn
Tue, 23 Aug 2016 23:34:28 -0000

I'm chiming in kind of late, but what's in /etc/hostname?

Sent from my iPhone

> On Aug 23, 2016, at 6:03 PM, Scott W. Sander <scottwsx96 at
gmail.com> wrote:
>
> Well, I tried setting the following in /etc/environment and restarting the
> server:
>
> DOVECOT_HOSTDOMAIN="mail.domain.test"
>
> After doing so, I verified that the command "dovecot
--hostdomain" returned
> "mail.domain.test" and not "appserver4.domain.com";
however, the email
> received header still shows:
>
> Received: from mail.domain.test by appserver4.domain.com (Dovecot) with
> LMTP id ....
>
> I also tried adding the following line to
> /etc/dovecot/conf.d/10-master.conf and restarting the dovecot service:
>
> hostname = mail.domain.test
>
> doveconf shows that "hostname = mail.domain.test", and now the
received
> headers show:
>
> Received: from mail.domain.test by mail.domain.test (Dovecot) with LMTP id
> ....
>
> So it seems that "hostname" is a valid, respected Dovecot
directive.
>
> ---
> Scott
>
>
>
>> On Tue, Aug 23, 2016 at 4:58 AM Sami Ketola <sami.ketola at
dovecot.fi> wrote:
>>
>> Hi,
>>
>> Looking at the source code it seems that the fqdn used in the lmtp
>> received headers is
>> fetched from environment variable DOVECOT_HOSTDOMAIN and if that is not
>> defined
>> gethostbyname() is used.
>>
>> You can try setting that prior launching dovecot.
>>
>> Sami
>>
>>
>>> On 19 Aug 2016, at 21:43, Scott W. Sander <scottwsx96 at
gmail.com> wrote:
>>>
>>> I have noticed that the name of my private server running dovecot
appears
>>> in email headers rather than the public-friendly name of my server.
>>>
>>> Is there a method to specify an alternate server name for the
dovecot
>>> server to use for itself in the dovecot configuration files?  I
>> performed a
>>> few Google searches and was not able to find the answer to my
question.
>>>
>>> -------
>>>
>>> user at server1:~$ dovecot --version
>>> 2.2.9
>>> user at server1:~$ dovecot -n
>>> # 2.2.9: /etc/dovecot/dovecot.conf
>>> # OS: Linux 3.16.0-77-generic x86_64 Ubuntu 14.04.4 LTS ext4
>>> auth_mechanisms = plain login
>>> info_log_path = /var/log/dovecot.log
>>> log_path = /var/log/dovecot.log
>>> mail_location = maildir:/var/mail/vhosts/%d/%n
>>> namespace inbox {
>>> inbox = yes
>>> location >>> mailbox Drafts {
>>>   special_use = \Drafts
>>> }
>>> mailbox Junk {
>>>   special_use = \Junk
>>> }
>>> mailbox Sent {
>>>   special_use = \Sent
>>> }
>>> mailbox "Sent Messages" {
>>>   special_use = \Sent
>>> }
>>> mailbox Trash {
>>>   special_use = \Trash
>>> }
>>> prefix >>> }
>>> passdb {
>>> args = scheme=PLAIN username_format=%u /etc/dovecot/dovecot-users
>>> driver = passwd-file
>>> }
>>> protocols = " imap lmtp pop3"
>>> service auth {
>>> unix_listener /var/spool/postfix/private/auth {
>>>   group = postfix
>>>   mode = 0666
>>>   user = postfix
>>> }
>>> }
>>> service imap-login {
>>> inet_listener imaps {
>>>   port = 993
>>>   ssl = yes
>>> }
>>> }
>>> service lmtp {
>>> unix_listener /var/spool/postfix/private/dovecot-lmtp {
>>>   group = postfix
>>>   mode = 0600
>>>   user = postfix
>>> }
>>> }
>>> service pop3-login {
>>> inet_listener pop3s {
>>>   port = 995
>>>   ssl = yes
>>> }
>>> }
>>> ssl = required
>>> ssl_cert = </etc/ssl/certs/server1_combined.pem
>>> ssl_key = </etc/ssl/private/server1_key.pem
>>> userdb {
>>> args = uid=vmail gid=vmail home=/var/mail/vhosts/%d/%n
>>> driver = static
>>> }
>>