Anne Wilson wrote on Fri, 28 Mar 2008 09:23:30 +0000:
Looking at those addresses in whois, I don't see any good reason for these,
I don't know what [IMAP rule match] means, haven't ever seen this. But it should be clear that if you have well-known ports open to the world that these attract brute-force attacks and such. That's how it is.
and I'm concerned in case they are relays.
I'm not sure what you mean by that?
Kai