Hi DR, > fetchmail: SMTP error: 550 maximum allowed line length is 998 octets, > got 1047 That's a very long-standing rule on SMTP. > bounces+11930396-d424-darose=darose.net@xxxxxxxxxxxxxxxxxxx ... > I'm not sure what, if anything, has changed recently to start causing > this. Have they something in common, e.g. all being bounced to sendgrid.meetup.com which indicates it's a problem with what the remote side is feeding fetchmail? Also, fetchmail(1)'s -v option will show the dialogue it has with the remote and local servers; this will confirm it's being fed invalid SMTP by the remote one. -- Cheers, Ralph.