On Thu, Jun 15, 2006 at 11:14:42AM +1000, Sonia Hamilton wrote: > * On Wed, Jun 14, 2006 at 11:48:06AM +1000, Jeff Waugh wrote: > > SAV is different to VRFY, and the combination of SAV and greylisting is > > really broken. I suggested to Chris that he turn SAV off, because it ends up > > being more problematic than it's worth. > > Well, still not sure if it's VRFY or SAV causing the problem. A couple > of questions: > * I've got verify disabled in postfix, as an anti spammer measure > (disable_vrfy_command = yes) - should I have it turned on? Would this > solve this VRFY problem?
No. It's essentially the greylisting from SLUG's mail server in effect. Your Postfix should hold your mail in the queue and retry the delivery after a specified time, as per the RFCs. Once the delivery is successful (yes, the SLUG mail server would accept your delivery after a specified time also), then your mail server IP (I think) should be cached in a whitelist, thus you shouldn't get that sort of delay again. > * would SAV problem be fixed by setting up Sender Policy Framework > (SPF) on my server? Or is this an unrelated fix? Not sure if the SLUG mail servers supports SPF. SLUG mail server admins? > -- > Sonia Hamilton. GPG key A8B77238. > . > "Complaining that Linux doesn't work well with Windows is like ... oh, > say, evaluating an early automobile and complaining that there's no > place to hitch up a horse." (Daniel Dvorkin) > -- > SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ > Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- -----BEGIN GEEK CODE BLOCK----- Version: 3.12 GCS d+ s: a- C++ UL++++ P- L+++ E--- W++ N* o-- K-- w--- O-- M V- PS PE Y PGP++ t 5 X++ R tv b++ DI+ D++ G e++ h! r y? ------END GEEK CODE BLOCK------
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