Hi there
• Kazuo Kuroi via Exim-users [2024-02-20 15:30]:
Hello exim-users,
I am currently trying to set up an Exim mail server with Dovecot as my local
IMAP system. Here is some info relevant to my setup:
Exim version is 4.97. built using pkgsrc.
Eh, I think the subject of the message is not really describing for the
issue you're having, as there's nothing wrong with Exim on NetBSD.
The main issue I'm having is setting up Exim for virtual users and to set up
mailboxes in a normal way.
You say that you're using Dovecot -- then why not use Dovecot's LDA --
or better LMTP and let Dovecot handle the delivery to the Maildirs, and
also take care of using proper UID, Sieve filtering and whatnot?
Ideally I would like Exim to use /var/email/user@domain with a standard maildir
directory tree. I am not sure how to accomplish this according to Exim
documentation, which is extensive but also a bit overwhelming as someone who
used Exim on Debian for years (which uses entirely different setups).
What Debian does is beyond my comprehension.
I suggest you read
https://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_default_configuration_file.html,
which goes through default configuration files and talks about various
parts of it.
Once I fixed the directory issue I can probably figure out how to set up
virtual users and share that info between Exim and Dovecot. On Dovecot I can do
this by using the %u variable. What would be the appropriate variable for here?
I tried using a few from the manual but I was just blindly stabbing in the dark.
Here you can have my own router and transport for Dovecot delivery.
Don't blindly copy, but try to understand what every options does.
dovecot:
driver = accept
address_data = ${lookup{$local_part@$domain}lsearch{MAIL_PASSWD_MAP
{$value}fail}
local_part_suffix = +*
local_part_suffix_optional
transport = dovecot_lmtp
dovecot_lmtp:
driver = lmtp
socket = /var/dovecot/lmtp
rcpt_include_affixes
MAIL_PASSWD_MAP is a macro which expands to a file which also Dovecot uses:
userdb {
driver = passwd-file
args = /local/db/dovecot-passwd/map
}
The file format is described in
https://doc.dovecot.org/configuration_manual/authentication/passwd_file/#authentication-passwd-file
The other thing I would like to accomplish is having an /etc/localdomains and
/etc/remotedomains file to hold what domains are accepted locally and not. I
don't suppose this is possible with current configurations? I have no idea how
it's done on RHEL or Debian, it always came out of the box like that.
Please read
https://www.exim.org/exim-html-current/doc/html/spec_html/ch-how_exim_receives_and_delivers_mail.html
and make sure you understand how delivery is done, especialy the role of
routers, and how routers define which transport are responsible for
doing the actual delivery (either locally or remotely).
There will probably be other problems that I have to discuss but I sincerely
hope that I can get some help here. If I have omitted some crucial detail
please let me know.
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