All my harmless replies are flagged error 554 as violating policy from my e-mail but not from the group website.
Don't flag ordinary replies on non-controverial subjects as Error 554 violating content guidelines. It is driving me nuts. Today (for the first time) all e-mails sent as replies to the small closed cat genetics group that I own, that I send from the e-mail account I have used for over a decade are blocked by Yahoo, If I go to the Yahoo website and post the exact same reply from withing the group site it works. The support people I have spoken to sent me to completely inappropriate forms for businesses doing commercial e-mails. Please have decent support and solve this problem!