diff --git a/docs/faq.rst b/docs/faq.rst index cec7fb98..61cb8daf 100644 --- a/docs/faq.rst +++ b/docs/faq.rst @@ -422,6 +422,6 @@ We **strongly** advice against downgrading the TLS version and ciphers! .. _`698`: https://github.com/Mailu/Mailu/issues/698 .. _`unbound`: https://nlnetlabs.nl/projects/unbound/about/ -A user gets ``Sender address rejected: Access denied. Please check the message recipient […] and try again`` even though the sender is legitimate? -```````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````` +A user gets ``Sender address rejected: Access denied. Please check the`` ``message recipient […] and try again`` even though the sender is legitimate? +`````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````` First, check if you are really sure the user is a legitimate sender, i.e. the registered user is authenticated successfully and own either the account or alias he/she is trying to send from. If you are really sure this is correct, then the user might try to errornously send via port 25 insteadof the designated SMTP client-ports. Port 25 is meant for server-to-server delivery, while users should use port 587 or 465.