I know this a common question from everywhere, But I already try all the solutions nothing have worked.
First Error persist only when..
I forward an email from specific sender with an pdf attachment. But if without pdf attachment It will sent without an issue.
And here's the test I tried.
1.) I forward an email thru web mail. It worked. ( so the problem is on the outlook.)
2.) Since Outlook have a problem I try to forward an email outside the domain . eg. google.com, yahoo.com and so on... It's fine.. But when I try to forward an email within my domain I have bounce back error
"Your message did not reach some or all of the intended recipient"
Not on all emails with pdf attachement but on a specific email address only.
Example if I forward all emails from firstname.lastname@example.org with .pdf attachment will bounce back..
Anyone can help me on this matter?