when i change a email-adress to firstname.lastname@domain.con bes 4.1 with zcb works not longer. it happened with zcb 5.0.16 and also with the update to 5.0.18

when i move the name back to lastname@domain.com it works

firstname.lastname@domain.com also makes it unpossible to activate an account. the activation e-mail stays in the inbox and is not collected by bes.

when i stop bes and start outlook on this server, the connection to the zimbra-server works and i see the activation e-mail in the inbox of the user from the server within outlook. but bes will not connect to the mailbox and will not sync

as mentioned before lastname@domain.com works firstname.lastname@domain.com not