Emails Bouncing Back

The Dagda · 22-06-2011 01:26PM #1

Hi,

Here in work we send our emails through MDaemon Pro.

Since yesterday we've been having some problems sending emails from some of the pc's in the office.
Originally it was just Hotmail that I couldn't send to so I did a Blacklist check and found our IP was blacklisted by one company so I fixed that.
Now I'm getting "Permanent Delivery Failure" from an Irish printing company's domain and the blacklist check is clear.

I've malware bytes and MSE running and up to date.

Does anyone have any solutions?

P.S. "Abusive content detected in your email" is at the bottom of the failure email, the email that failed has nothing even close to something that could be judged "abusive content" in it.

Odaise Gaelach · 22-06-2011 05:47PM

In the failure e-mails, do you get the original e-mail as an attachment? I'd have a look at them to see if the e-mails you're sending are the same as the ones that are returned to you.

The Dagda · 23-06-2011 11:06AM

OP here, It seems to have been some kind of Malware, I updated MSE and did a full scan and it found 2 problems. I removed them, restarted and the problem looks to be gone.

The 2 problems were; "Exploit:Java/CVE-2008-5353.FI" which was classed as a "severe" the second one was "Adware:Win32/OpenCandy" which had a "low" alert level.

Emails Bouncing Back

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