[Dovecot] alias best practice
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Given a Linux mail server with Postfix+Dovecot using MySQL as userbase, a single Linux user for file system access, two mail domains configured (acme1.com acme2.com) and a maildir structure as follows
\var\spool\mail\acme1.com- \user1 \user2 \user3 \var\spool\mail\acme2.com- \user1 \user2 \user3
I want that the mail of user1@acme1.com and user1@acme2.com goes in \var\spool\mail\acme1.com\user1
Note that there could be some users not equal between two domains.
What is the best practice?
Alias at Postfix level
The same maildir path specified in MySQL record
ln -s between \var\spool\mail\acme1.com\user1 and \var\spool\mail\acme2.com\user1
Else? (Dovecot virtual mailbox)
Thank you.
Ciao, luigi
/ +--[Luigi Rosa]-- \
Blessed are they who Go Around in Circles, for they Shall be Known as Wheels.
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I can't say it's best practice, it depends on your setting.
I'm allowing IMAP login from both user1@acme1.com and user1@acme2.com,
to some extent it's user1@acme1.com & user2@acme2.com to the same
maildir location, and I'm taking the 2) approach.
- The same maildir path specified in MySQL record
HTH
- Joseph
On 3-Jul-09, at 10:47 AM, Luigi Rosa wrote:
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Given a Linux mail server with Postfix+Dovecot using MySQL as
userbase, a single Linux user for file system access, two mail domains configured
(acme1.com acme2.com) and a maildir structure as follows\var\spool\mail\acme1.com- \user1 \user2 \user3 \var\spool\mail\acme2.com- \user1 \user2 \user3
I want that the mail of user1@acme1.com and user1@acme2.com goes in \var\spool\mail\acme1.com\user1
Note that there could be some users not equal between two domains.
What is the best practice?
Alias at Postfix level
The same maildir path specified in MySQL record
ln -s between \var\spool\mail\acme1.com\user1 and \var\spool\mail \acme2.com\user1
Else? (Dovecot virtual mailbox)
Thank you.
Ciao, luigi
/ +--[Luigi Rosa]-- \
Blessed are they who Go Around in Circles, for they Shall be Known as Wheels.
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iEYEARECAAYFAkpOGf8ACgkQ3kWu7Tfl6ZTJ1ACgp52Fy7PbGpnU9pFnvVioNcFO OO8AoJRGG2UkyPXczR/bkAXqwjmVtpyL =Loje -----END PGP SIGNATURE-----
On Fri, Jul 3, 2009 at 5:47 PM, Luigi Rosa lists@luigirosa.com wrote:
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Given a Linux mail server with Postfix+Dovecot using MySQL as userbase, a single Linux user for file system access, two mail domains configured (acme1.com acme2.com) and a maildir structure as follows
\var\spool\mail\acme1.com- \user1 \user2 \user3 \var\spool\mail\acme2.com- \user1 \user2 \user3
I want that the mail of user1@acme1.com and user1@acme2.com goes in \var\spool\mail\acme1.com\user1
That's the job for your MTA. Simply make acme2.com and alias to acme1.com
Note that there could be some users not equal between two domains.
You mean that there can be userX@acme2.com but no userX@acme1.com? Well, in the case of aliasing, or address rewriting (BTW, I only know how to use Exim so I am talking about the conceptualization here), if acme2.com is an alias of acme1.com, then users only need to exist on acme1.com. Suppose there is johndoe@acme2.com and no account exists for johndoe@acme1.com then in the case of aliasing the mail to johndoe will fail!
What is the best practice?
- Alias at Postfix level
I was going to say yes, but please note my explanation above.
- The same maildir path specified in MySQL record
Not really. Doesn't sound good. Deliver mail based on the existence/validity of e-mail account.
- ln -s between \var\spool\mail\acme1.com\user1 and \var\spool\mail
acme2.com\user1
Forget this.
- Else? (Dovecot virtual mailbox)
I haven't tried this at all.
-- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254733744121/+254722743223
"If you have nothing good to say about someone, just shut up!." -- Lucky Dube
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On Fri, 3 Jul 2009, Luigi Rosa wrote:
As Joseph said, it is a matter of taste.
\var\spool\mail\acme1.com- \user1 \var\spool\mail\acme2.com- \user1
I want that the mail of user1@acme1.com and user1@acme2.com goes in \var\spool\mail\acme1.com\user1
Note that there could be some users not equal between two domains.
What is the best practice?
Alias at Postfix level
The same maildir path specified in MySQL record
ln -s between \var\spool\mail\acme1.com\user1 and \var\spool\mail\acme2.com\user1
Hmm, personally I'd prefer 2) over 3), e.g. because there is no need for the symlinks, unless other tasks/services _rely_ on the existance of both dirs.
Choosing between 1) vs. 2) I'd ask, who is going to login: If you have both user1@acme1.com _and_ user1@acme2.com login, use 2), 1) otherwise. But stick to one way for all for sake of maintainability.
Variant 2) has the drawback, that you have two distinct user entries with a different password. However, I guess, you can manage to write a SQL query to map both users to one entry in Dovecot, but what about other services?
Bye,
Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux)
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participants (4)
-
Joseph Yee
-
Luigi Rosa
-
Odhiambo ワシントン
-
Steffen Kaiser