Ken Magill, Laura Atkins on Zoominfo

Zoominfo -- a company that has created some sort of business contact database where you (you probably being "spammer") can buy lists of email addresses. Ken Magill talks about them here, quoting deliverability consultant Laura Atkins at length.

Here's my take on this.

Spam from Postini Servers

John Levine reports on yet another example of spam received from the servers of spam filtering service provider Postini.

Gmail Tempfailing

Word on the street is, if you're running an MTA that utilizes pipelining aggressively, you're probably having trouble sending email to Gmail right now.

Here's an example of the error message received when messages are being deferred: (host aspmx.l.google.com[72.14.205.27] said: 451 4.5.0 SMTP protocol violation, see RFC 2821 (in reply to end of DATA command))

The issue is clearly affecting people running Postfix. I'm unclear on whether or not it is affecting others.

More on the issue, including a fix for Postfix users, can be found over on the Word to the Wise blog.