Is there a list of domains/ISPs banned from sending to Yahoo Groups?

Question

The primary e-mail address I have used for years on Yahoo Groups now can't seem to send messages to any groups. I'm wondering if it (or its domain, or the web host I use for e-mail) have wound up on some list that's banned from Yahoo Groups.

Answer 1

No, there's no list available for what you want.  Some ISPs dont "play nice" with Yahoo.  AOL, SBC, earthlink are a few that have problems. Some Hotmail users do but my HM account is fairly trouble-free.