Hi, we're configuring Asterisk and Ast2billing on a hosted Linux server using CentOS 4.4. Our hosting provider is [url removed, login to view]
We cannot get Ast2billing to successfully send out customer signup confirmation and other emails from our server. They are rejected or directed to SPAM/Junk mail by receiving servers like Yahoo!, Hotmail!, Gmail etc.
We see this error,,to=<>, delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=120346, relay=mta-v1.mail.vip.cnb.yahoo.com. [[url removed, login to view]], dsn=4.0.0, stat=Deferred: 421 Message from ([url removed, login to view]) temporarily deferred - 4.16.50. Please refer to [url removed, login to view]
We need a linux expert to troubleshoot, diagnose and fix this problem ASAP.