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The Bottom Line
- Chrysanth Mail Manager checks DNS blacklists to block junk from known spammers, supports Hashcash
- Works with POP and IMAP accounts, lets you set up your own filters
- Chrysanth Mail Manager is slick, elegant and easy to use
- Chrysanth Mail Manager leaves quite a bit of spam through
- Enabling more blacklists increases the risk of false positives
- Chrysanth Mail Manager doesn't offer statistical filters
Description
- Chrysanth Mail Manager checks POP and IMAP email accounts for spam.
- Spam is detected using DNS blackhole lists, local black and white lists and custom rules.
- Chrysanth Mail Manager comes with many blackhole lists preset but lets you configure your own, too.
- If you trust a blackhole list, Chrysanth Mail Manager can automatically delete mail it catches.
- In addition to deleting mail, you can have Chrysanth Mail Manager bounce emails back to the sender.
- Chrysanth Mail Manager honors Hashcash headers that demonstrate the sender's commitment.
- Chrysanth Mail Manager support Windows 9x/ME/NT/2000/3/XP.
Guide Review - Chrysanth Mail Manager 2.0 - Spam Filter
Unfortunately, DNS blackhole lists are great as a political measure of pressure on spam-friendly ISPs, but they are not the most precise form of spam filtering. If you don't want to risk blocking — or in the case of Chrysanth Mail Manager deleting — legit mail, you can't put the occasional and involuntary source of spam on such a list.
Some spam will get through, and spammers are pretty good at escaping the more conservative blacklists enabled by default in Chrysanth Mail Manager. One way to get around this is using strict blacklists and relying on Chrysanth Mail Manager's support for Hashcash, a way to detect mail from good senders.
Unfortunately, few people use Hashcash yet. In addition to DNS list checking, Chrysanth Mail Manager lets you maintain your own local black and white lists of senders and domains, you can set up rules that look for certain words or phrases in email headers.
Chrysanth Mail Manager also offers statistics and graphs about how much (Chrysanth-detected) spam you have received. Unfortunately, that doesn't really improve the detection rate and precision much either.
