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"out-of-office" & NDR risks

By ElliotRoss ·
As an Admin - I have always blocked out of office email messages, NDR's, etc from leaving the firewall. It was always classified as two risky. The days of routing loops etc are over, but I hear that they can be hijacked to deliberately be used as a relay. can any one state how high this risk actually is?

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Other risks

by gralfus In reply to "out-of-office" & NDR ris ...

Even if they aren't hijacked, having these kind of messages go offsite is a security risk for the person involved. It can let a thief know that they are on vacation, etc. It can also let a spammer know that the address is valid.

I haven't heard of replies being hijacked, but these days just about anything could be true.

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