552 5.2.0 bounce error sending group emails!

Hey, john2222.  Just jumping in here to commiserate.  I had it confirmed in a telephone call with Tier II yesterday that the 'new' limit is 'under 10' recipients.  Which is WAY over the top in aggressiveness as an anti-spam measure.  It cripples the utility of using email, especially the utility of as mature and robust an email client as Outlook.  Expecting all of us to move our contact lists and distribution lists to the web interface is EXTREMELY heavy-handed.  One might even cast it as uncaring, in a "let them eat cake" sort of way.

I researched the 552 5.2.0 error.  Many sysadmins customize the error to "automated process detected unsolicited content" or something similar, meaning "suspected spam".  You have 10 recipients, you hit the algorithmic tripwire = automated bounce.  As others have noted, this is ridiculous and effectively kills email as a functional means of communication.

I'm guessing Cox has had to over time deal with getting periodically blacklisted.  And it is a huge chore to get off a blacklist.  But what they have implemented (and I suspect purchased from a third-party "anti-spam" vendor) is overkill.  To the extreme.  Once all the customers are gone, maybe they'll wake up.