Hi,
I am facing following challenge in my apex_mail service with office365.
"Your message contains invalid characters (bare line feed characters) which the recipients' email servers at mydomail.com don't support"
It was working without any issue before, I had raised this issue with our internal IT team, their reply is below
"Proofpoint has informed that the message was rejected for SMTP bareline feeds. Proofpoint does not support bareline feeds based upon RFC 5321 2.3.8 as SMTP Protocol chunking feature is required.
The application or mail client that created the message is creating the message in a non-valid formatting, to resolve the issue the original malformed message must be corrected into valid sending format"
I couldn't find any solution.
So my next assumption was something wrong in my mail content, so I tested same email message using python + office365 script.
It is working with out any issue.
So I have some doubt about apex_mail send, may be it is sending some bare line feed characters along with my message.
My apex version is 19.1, database 12.1.0.2
Regards
Satheesh Kumar