Re: Google and SORBS

Andrew Lewis <[email protected]>
Newsgroups gmane.org.operators.ioz
Message-ID <[email protected]>
> What does one do when SORBS blacklists google mail servers and mail
> bounces from adept.co.za, saoutsourcing.com (to name two) and others.
> Surely there are better ways to deal with spam, than willy nilly
> believing SORBS. like greylisting for example?  What about recipients
> that wish to whitelist senders?

> Do ISP's in SA generally just (do the thinking | not think | do what's
> best for them and not) for their users, or what is the general
> practice in this regard?

Personally I'm not fond of greylisting. We use the Spamhaus DNSBL which is fairly good about not listing people unless it's apparent that no-one is interested in fixing the problem.

We are also fairly conservative in our use of other mechanisms which would lead to policy rejection of e-Mail and consequently we deal with *extremely few* false positives. Nevertheless, we have taken pains to provide paths of recourse to people who's legitimate mail has been blocked by the filter (including one or more of: an automatic whitelisting facility, an address to contact for help)- the particulars of which are sent in the rejection text at SMTP time.

This makes sense (unless your filters are infalible- and who's are?). Sadly I have not seen any other local ISPs doing this - the norm seems to be that if your mail is blocked by whatever overzealous antispam mechanism then thats that (and you should probably pick up the phone or something?).

-- 
Andrew Lewis <[email protected]>

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