After updating from plesk 8.1 to 8.3 i cannot send Mails

[axelnes]

After upadting from plesk 8.1 to 8.3,

If i try to send a E-Mail trough an new configured E-Mail Mailbox (same domain and same configuration then older Mailboxes)

this Error notice returns
550 sorry, no mailbox here by that name. (#5.7.17)

If i send trough án older account all works well.

what does i oversight?

 

[axelnes]

I solve the Problem

I have some domains on my Server whithout using the mail - servive of the same server
and i forgot to deactivate this service for this domains.

The effect was that emails from domains who use the mail - servive from my server couldn't be delivered to domains (hosted on my server) not using the mail - servive.