In the last 3 day's I've noticed o lot of Address-scans, nearly in alphabetical order of all the domains hosted on our mailserver.
Those are called a "dictionary attack".

IP's from (examples):
207.44.134.48
207.44.142.84
...

IPWhois Lookup:
OrgName:    Everyones Internet, Inc.
OrgID:      EVRY
NetRange:   207.44.128.0 - 207.44.255.255
CIDR:       207.44.128.0/17
NetName:    EVRY-BLK-11
NetHandle:  NET-207-44-128-0-1
Parent:     NET-207-0-0-0-0
NetType:    Direct Allocation
NameServer: NS1.EV1.NET
NameServer: NS2.EV1.NET
Have you contacted [EMAIL PROTECTED]? That's the first step, if you haven't done so yet.

I've noticed, that the scan is made by one or two mails from <mailto:root@;microsoft.com>[EMAIL PROTECTED] to a lot of recipients of the regarding domain.

Question: Everyone else has seen this scans on his system?
I've added the indicated senders email-Adress to the Imail Kill-file.
Dictionary attacks are quite common these days. Unfortunately, there isn't much you can do to stop them -- although in this case, you're lucky that they are using the same return address, so you can block them with IMail's Kill List.

Declude doesn't have a good way to detect/block these, as it doesn't see anything until an E-mail is received, which won't happen during a properly constructed dictionary attack.
-Scott

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