Category Archives: Status

Bogus “Delivery Status Notification”

There is a trojan making the rounds that masquerades as a Delivery Status Notification. It contains the line: Note: Forwarded message is attached. The attachment is an html attachment which carries various javascript browser exploits/trojans. Postini is aware of the situation, and Postini Spam Engineering continues to monitor for new variants and will release additional… Read More »

Verizon blocking port 25

We’ve received a number of reports from Verizon DSL customers that they’ve suddenly lost the ability to send mail.   Verizon started blocking port 25 (the SMTP port, used to send email) for DSL and FIOS customers in some areas in 2009, and evidently they’ve now made this system-wide.  There’s a Verizon writeup at:… Read More »