Returned mail: Data format error

[Post Office <po...@apache.org>]

Dear user apache-cvs@apache.org,

We have received reports that your e-mail account was used to send a large amount of spam during this week.
Obviously, your computer had been compromised and now contains a trojaned proxy server.

We recommend that you follow the instruction in order to keep your computer safe.

Have a nice day,
apache.org support team.