exim -- DKIM private key leak

The Exim project reports: Exim leaks the private DKIM signing key to the log files. Additionally, if the build option EXPERIMENTALDSNINFO=yes is used, the key material is included in the bounce message...

CVE-2006-0559

Format string vulnerability in the SMTP server for McAfee WebShield 4.5 MR2 and earlier allows remote attackers to execute arbitrary code via format strings in the domain name portion of a destination address, which are not properly handled when a bounce message is constructed...

FetchMail mail processor DoS

Error on bounce message generation cause uninitialized memory reference...