Email to wrong box

[rbartz]

Problem: Email for jim@domainTWO.com (NOT a real user) gets put into jim@domainONE.com, a real user with username jim. domainTWO.com is a domain we host.
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We have several virtual domains on a server. A lot of mail users. We turned off the ISPConfig prefixing for email users from the beginning because a lot of the accounts were being moved from another server and we wanted to use the same usernames.

One email address is jim@domainONE.com username jim. This is the ONLY "jim" on the server, there are no others. jim is the admin account for domainONE.com, but he is not an email catchall.

Mail for jim@domainTWO.com (NOT a real user or email address or even an alias!) is sometimes put into jim's mailbox. Since it is always spam, it makes jim mad and gives me a headache... :-)

There are several other accounts where common names are used, even where email addresses use the same names for different domains and addresses (SO many "info@..."), but this is the only domain it affects. Both are vitural, there is no mydomain setting in mail.cf. Postfix seems always to reject mail to non-existent users. The MX record in the DNS points to the domain names as the MX domain.

Any ideas? Thanks!

Richard

[falko]

If you have removed the username prefixes and there is a system user "jim" on the system, then all emails for jim@domainONE.com, jim@domainTWO.com, etc. will go to the mailbox of the system user "jim". That's why username prefixes are enabled by default in ISPConfig.