Good spam filter for Thunderbird users?


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.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

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,

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

Clark Kent
Mustafa L. McLinnSystems Engineer/Systems AdministratorCommented:

Open in new window

GFI has a compatible spam filter for Thunderbird.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
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.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.