it was working with after updating the certificates but now the next problem.
Error occurred: system failure: Failed to send mailbox from source server wmbxc2-s2.prd.de1.sp.vodafone.com: Error importing mailbox for account
elvisdomaincomon host
mailboxdomaincom no such account 75abd566288f44f6b91c625b2a54d82b
the email account is
elvis@domain.com and the server mailbox.domain.com. Somebody has stolen my dots and @ and therefore it can't find the account.