I suspect that this is being blocked because these are new IPs that AT&T has never received mail from, so they block them by default. Is there an official way to inform AT&T before trying to send mail from new IPs that new IPs will be sending mail? As far as I know AT&T is the only service that outright blocks messages from new and unseen IP addresses by default.
No. TNL(t-online) is even worse. BTW, you may contact Lili directly who is on this list. -- Jeff Pang jeffp...@aol.com _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop