From: "Daniel Dickinson" cshore@brucetelecom.com
My ISP (www.bmts.com - Bruce Telecom, reachable at tech@brucetelecom.com) uses surbl to detect and block SPAM, however the debian mailing lists do not and this results in bounces of mail sent to the debian mailing lists and through it to me through my provider. This is bad because the debian mailing lists unsubscribe users who have too many bounces.
On 15.04.09 21:29, Kevin A. McGrail wrote:
Not speaking on behalf of SURBL but using SURBL to block email is not a recommended usage. From http://www.surbl.org/
"direct blocking at the MTA level is not recommended. It's generally better to use SURBLs along with multiple, weighted factors, as SpamAssasssin does."
My question is, how does BMTS detect spam. If it uses spamassassin, allows users configure their preferences and SA uses them, user could apparently whitelist debian lists so mail from them wouldn't be rejected. (this might be question to spamassassin-users list)
However, additionally, why are so many messages to the debian mailing list hitting surbl domains? Even the anti-spam mailing lists don't have this problem that much. If you are discussing questionable domains use <domain>-munge.com for example.
Or is the debian list infiltrated by spammers who are sending spam? Are you in digest mode and it's hitting on a bunch of email addresses or something?
I've seen it already happen, that spammer subscribed debian mailing list to send spam there. Since debian list policy recommends its members not to reject mail from it (quite correct I'd say, I did whitelist them), it may be interesting for spammers to spam through them
I think they are wrong and not understand. Could someone kindly beat the over the head with instruction on how to whitelist listz.debian.org so that it is not blocked even if a surbl blacklisted URL is in the mail?
It depends on the way BMTS uses surbl...