Good spam filter for Thunderbird users?

Hi,

I am trying to come up with a good spam filtering solution for a business with around 15-20 users, each user running multiple POP3 accounts. Many of these accounts are fairly generic "info@" accounts, and as such, they tend to receive quite a lot of spam to the point where it is starting to become a serious problem. Users are all running Thunderbird (with maybe one or two of them running Outlook 2010).

I am going there today to confirm that they actually have Thunderbird's junk settings enabled and configured, but I have a feeling I'll probably need more than that for the amount of emails they receive daily. The business has a SonicWall in place, but from what I can tell, the SonicWall's anti-spam service doesn't work with Thunderbird (it apparently has a client program you can run on workstations to make it work with POP3 accounts in something like Outlook, but I saw no mention of Thunderbird support), not to mention that the SonicWall model they have is discontinued anyway.

Can anyone make any recommendations? I'm having a difficult time finding a solution that works with Thunderbird.
jhighwindAsked:
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FlippCommented:
Have you thought about possibly using an incoming 3rd party antispam solution to filter out before reaching mailbox on server?
Clark KentSoftware Engineer cum BloggerCommented:
Hello Jhigwind,

http://www.spamfighter.com/SPAMfighter/thunderbird_spam_filter.asp
http://www.spamihilator.com/en
http://www.mailwasher.net/


Try these alternative sources and let us know if the issue still persist.

Cheers
Clark Kent
Mustafa L. McLinnSystems Engineer/Systems AdministratorCommented:
http://www.gfi.com/products-and-solutions/email-and-messaging-solutions/gfi-mailessentials

Open in new window

http://www.gfi.com/products-and-solutions/email-and-messaging-solutions/gfi-mailessentials


GFI has a compatible spam filter for Thunderbird.

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ElrondCTCommented:
I would expect pretty much anything that works with Outlook to also work with Thunderbird; the protocols for POP3 are standard, so the clients should be interchangeable, unless the antispam application is truly integrated into Outlook so that it doesn't run as a separate application.

TB's junk filter will definitely not be enough for you. I use SpamAssassin at the domain hosting level, but you can choose either enterprise antispam, or applications that are installed on the individual user's computer. Enterprise-level is probably preferable for you, so you can make sure everyone is kept up to date and consistent.
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