A user opened a ticket via portal. We have automated email response for new tickets. It failed:
An error occurred while processing the mail.
Reason: No email address found for the following user: (users name)
Same result when agent answers to ticket from portal.
His SMTP matches what we have in AD & M365 and user logs in succesfully using AD crendentials to Lansweeper.
Resolution: user was previously only a contact in Exchange for company we later bought and migrated their domains and emails. He had already opened tickets. Lansweeper doesn't automatically update information. From User Access & Roles it is possible to update/merge addresses, just hit the exclamation mark and accept.