Sieve: "@" in user names wont work?

Daniel Lawson dhtrl1 at
Sun Aug 31 01:30:48 EDT 2003

I have a virtual domain system set up under Debian Woody with exim, ldap 
as an auth backend, and cyrus 2.1.15 (backported to Woody). I am using 
althierarchy and unixsep. Saslauthd is configured to use PAM as an 
authentication mechanism.

Mailboxes are created with the name "user at". Delivery and 
retrieval works perfectly.

However, I cannot log in to timsieved with usernames in this format. The 
standard mail logs only show failed login style messages.

My authentication log has the following (edited) snippet:

Aug 31 17:16:18 server cyrus/timsieved[20862]: can't access srvtab file 
/etc/srvtab: No such file or directory
Aug 31 17:16:18 server cyrus/timsieved[20862]: server add_plugin 
entry_point error generic failure
Aug 31 17:16:18 server cyrus/timsieved[20862]: _sasl_plugin_load failed 
on sasl_server_plug_init for plugin: kerberos4
Aug 31 17:16:18 server cyrus/timsieved[20862]: cross-realm login 
test at denied

The first three lines appear to occur every time someone logs in, so I 
dont think this is relevant. The last one seems to be the relevant one - 
'cross-realm login ...'

Adding '' to the 'loginrealms' parameter in imapd.conf 
allows this user to login via sieve.

I'd rather not have to add every domain to this field if I can at all 
help it. I'll confess that I know very little about SASL, however it 
bothers me that it acts differently when used from Sieve (ie, wont allow 
logins) but both the IMAP and POP daemons allow logins fine.

Is there something about Sieve which means I cannot use "@" in usernames 
at all? Am i missing an obvious configuration option somewhere? :/ 
Anyone have any thoughts on how to fix this?


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