On a regular basis we create a newsletter for all users by a new subject in a category set up a standard setting as watching first post. Today only about 50 messages were sent.
About 130 users, randomly, no cetain trust level and both new and old ones is listed as emails skipped with reason:
|user_watching_first_post|, 502 Command not implemented|
I´ve checked some of those and they have the correct setting and everything in their profile.
What´s causing this error and how to solve it?
Will the system try to resend those skipped or is it any way to trigger this without making a new post?
It seems we had the same issue before 14/8 regarding:
|user_posted|, 502 Command not implemented|
I never noticed this one. Also randomly among our users.
What´s causing this?