Error when i tried to sent mails to my organization
Posted on 2016-11-07
I have problem when i tried to send mail from external mail to my orgnizaion mail server the message as below from gmail
Delivery to the following recipient failed permanently:
Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain citadelplaza.com [22.214.171.124].
The error that the other server returned was:
530 SMTP authentication is required.
I can send mails to external domains but i cant receive it