Our client annegorgerat.com has a problem with the e-mail. In Outlook and Webmail always comes the message: SMTP Error (554): The recipient "email@example.com" could not be set (5.7.1 <firstname.lastname@example.org>:
Recipient address rejected: user email@example.com does not exist).
Yesterday everything worked and now nothing works, received not working, but sending!
Would be happy if that can be fixed as soon as possible!
Many thanks and kind regards,