On 18/09/2013 09:02, Tom Hendrikx wrote:

On 09/18/2013 09:43 AM, Ben wrote:

...

Hello,

As far as I'm aware, email is case insensitive ?

Dovecot however, seems to be taking offence at the fact that someone is sending mail to user@SOMEDOMAIN.XYZ.

Postfix has no issues handling it, it when it gets passed over to Dovecot LMTP that I get log lines such as :

Sep 17 13:48:22 ukc-vm02-mx01 dovecot: auth: passwd-file(user@SOMEDOMAIN.XYZ): unknown user

This is an IMAP username that seems to be formatted similar to an e-mail address because your setup is built like that. Usernames (IMAP or otherwise) and passwords are not part of any email spec, but checking them case-sensitive sounds like a good idea in general.

You should make sure that the username string used by dovecot-auth is formatted according to what your setup dictates (i.e. probably all lowercase). Probably you need something along the lines of:

userdb { driver = passwd-file args = username_format=%Lu /path/to/file }

See http://wiki2.dovecot.org/AuthDatabase/PasswdFile and http://wiki2.dovecot.org/Variables

Regards, Tom

Thanks Tom, will try !

On 18.9.2013, at 11.02, Tom Hendrikx <tom@whyscream.net> wrote:

On 09/18/2013 09:43 AM, Ben wrote:

...

Hello,

As far as I'm aware, email is case insensitive ?

Dovecot however, seems to be taking offence at the fact that someone is sending mail to user@SOMEDOMAIN.XYZ.

Postfix has no issues handling it, it when it gets passed over to Dovecot LMTP that I get log lines such as :

Sep 17 13:48:22 ukc-vm02-mx01 dovecot: auth: passwd-file(user@SOMEDOMAIN.XYZ): unknown user

This is an IMAP username that seems to be formatted similar to an e-mail address because your setup is built like that. Usernames (IMAP or otherwise) and passwords are not part of any email spec, but checking them case-sensitive sounds like a good idea in general.

You should make sure that the username string used by dovecot-auth is formatted according to what your setup dictates (i.e. probably all lowercase). Probably you need something along the lines of:

userdb { driver = passwd-file args = username_format=%Lu /path/to/file }

Easiest that works with all passdbs and userdbs is:

auth_username_format = %Lu

This has also been the default since .. v2.1 I think.

On 18/09/2013 09:23, Reindl Harald wrote:

Am 18.09.2013 09:43, schrieb Ben:

...

As far as I'm aware, email is case insensitive?

yes, the localpart in theory is, but only fools would configure me@exacmple.com and ME@example.com for different users because it doe snot work in the real world

...

Dovecot however, seems to be taking offence at the fact that someone is sending mail to user@SOMEDOMAIN.XYZ. Postfix has no issues handling it, it when it gets passed over to Dovecot LMTP that I get log lines such as :

Sep 17 13:48:22 ukc-vm02-mx01 dovecot: auth: passwd-file(user@SOMEDOMAIN.XYZ): unknown user

However user@somedomain.xyz *DOES* exist in the passwd file. Just not with a capitalised domain ! I am confused

RTFM

auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@% auth_username_translation = %@AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz

If I knew what I was looking for in TFM, I would have R'd it ;-)