Message failed: 451 4.3.5 <END-OF-MESSAGE>: End-of-data rejected: Server configuration problem

[Davidof90]

Hello,

Sometimes I get this error in the “Email” module:

Message failed: 451 4.3.5 : End-of-data rejected: Server configuration problem.

Most of the time it’s working, I can’t find out when/why the error is ocurring.

I’m sending some content:

and 2 attachments, 1 PDF and 1 XML file:

[Paranoid_Bear]

Hi this kind of error usually shows up if there is something wrong on the email provider side.
Contact the admin of your email provider to double-check if the configuration is correct.