The is an email scam to validate your email address. The link “this patch” contains a hyperlink to an IP Address (not an actual company domain) and there is a query string attached to it (below). The query string has an encrypted section of garbled looking text. That’s your email address in an encrypted format. If you click the link, the server you land on decrypts the string to get your email address, and tags a database to say you are a sucker and to send you a LOT more spam.
http://75.215.64.26/?09ff64d82c3b9ebeed454601e5re7210
Network admins who have a problem with your email server wil send official email and you will have contact information to resolve any real issues.
********** ACTUAL EMAIL CONTENT **********
Dear Customer,
Our robot has detected an abnormal activity from your IP adress
on sending e-mails. Probably it is connected with the last epidemic
of a worm which does not have official patches at the moment.
We recommend you to install this patch to remove worm files
and stop email sending, otherwise your account will be blocked.
Abuse Team