[BlueOnyx:22307] Re: Barracuda RBL

[Ken Hohhof]

It doesn't sound like the problem you are seeing, but I remember Barracuda
appliances used to have an option called something like "deep header scan"
that was on by default or recommended in the manual.  What it did was to
check the IP address of the sender, not just the MTA.  And if Barracuda
identified it as a dynamic pool address (which is what many residential
accounts have), it got blocked.  Very annoying.

-----Original Message-----
From: Blueonyx <blueonyx-bounces at mail.blueonyx.it> On Behalf Of Michael
Stauber
Sent: Wednesday, August 1, 2018 12:19 PM
To: blueonyx at mail.blueonyx.it
Subject: [BlueOnyx:22306] Re: Barracuda RBL

Hi all,


> As recently reported here Barracuda has blacklisted the IP address of 
> the BlueOnyx mailing list server for no apparent reasons. I asked for 
> a delisting and never heard back.
> 
> Today we're still in the blacklist. I (again) asked for a delisting, 
> but as of yet haven't heard anything back.
> 
> As that's a bit ridiculous I just moved the BlueOnyx mailing list 
> server to another IP address for the time being.

Barracuda has now blacklisted the new IP as well. This is ridiculous.

Only explanation: Someone who is subscribed to this list is reporting the
list emails as SPAM to Barracuda.

--
With best regards

Michael Stauber
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