Security researchers have found inconsistencies in how some Simple Mail Transfer Protocol (SMTP) servers handle end-of-data sequences. This allows the injection of SMTP commands into email messages in ...

Microsoft has shared updated requirements for SMTP relay via its Exchange Online platform. The new updated requirement is not applicable yet and is set to roll out towards the end of the year.

A new SMTP header developed by Facebook and Yahoo confirms ownership of Yahoo email accounts. Yahoo’s decision in June 2013 to reset accounts that had been dormant for 12 months and make them ...