software:553-requested-action-not-taken-mailbox-name-not-allowed
553 Requested action not taken: mailbox name not allowed
Such error is returned to you by email servers in reply to messages sent from Thunderbird, Outlook, or any other means, when the recipient email it typed with illegal characters, maybe because doing copy/paste and some unwanted characthers have been included, or simply because of typos.
e.g. not\allowed@example.com
Solution
Simply resend the email removing the illegal characters.
software/553-requested-action-not-taken-mailbox-name-not-allowed.txt · Last modified: 2022/10/12 15:56 by rik