Comments on: IP relisted despite no more mail being sent

By: Mickey Chandler's Spamtacular | Top 10 Posts of 2009

Mickey Chandler's Spamtacular | Top 10 Posts of 2009 — Thu, 31 Dec 2009 16:23:11 +0000

[...] IP relisted despite no more mail being sent. It seems like I blogged about Barracuda a lot. Truth be told, I probably had more problems out of Barracuda in 2009 than I did anyone else. This post was about them relisting an IP address even though they could not have had any fresh complaints since there had been no mail going out over it in more than 30 days. [...]

By: Tom Caldwell

Tom Caldwell — Mon, 30 Nov 2009 19:49:57 +0000

We've detected millions of messages being returned from Barracuda appliances on clients with SPF and proper rDNS/best practices. They need to disable this feature, as our networks didn't send the original message. These messages always caught because they return the spammy text/URL with it. It's pointless and wastes everyone's resources. As for listing we've seen wrongfully listed IP's, happens in every reputation database, however paying to stay OFF a list or to be removed is racketeering/extortion in my opinion, and I hope someone sues to set a precedent over it.

By: Peter Towers

Peter Towers — Thu, 05 Nov 2009 23:08:07 +0000

I've gone through a similar cycle of de-listings with a client. Ironically, the Barracuda product was used by their own ISP where the client had a few e-mail addresses hosted (companydepartname@ispname.com), and the site listed with a "poor rating" was their main domain (department@companyname.com), which had the effect that they couldn't send emails within their own department. After the second re-listing to the poor ratings list (which is odd, this is a Mac shop with professionally hosted e-mail and web services), I instead approached the ISP and had them white list us (which wasn't that easy). Of course, they communicate with other domains that also use Barracuda products, but at least now they could communicate internally. Sucks for the client who had to use my resources doing network administrative detective work instead of checking backups and taking care of the LAN. What a pain.

By: mickc

mickc — Mon, 29 Jun 2009 18:29:46 +0000

That has been done, as I work for the ESP. The tracking domain is not on the list.

By: Tim

Tim — Mon, 29 Jun 2009 12:54:19 +0000

It might be worth checking any of the domains that get included in the content of the email (and the header) to see if thiers a particular domain that barracuda does not like. It might be one that your esp uses across many clients.

By: Problems with Barracuda blocklist at Word to the Wise

Problems with Barracuda blocklist at Word to the Wise — Fri, 26 Jun 2009 19:51:22 +0000

[...] documents a problem he encountered with the Barracuda blocklist and relisting happening after a delisting even when [...]

By: J. Garcia

J. Garcia — Fri, 26 Jun 2009 18:18:42 +0000

Not only do I believe they used old information to list the IP and that they do random rDNS checks, I also believe their staff maliciously sign up to lists just to report senders as spammers.

And what's up with having to pay them to keep your domain from being on their blacklist??