Greylisting (WAS: gif attachments)

Daniel Maher daniel.maher at
Wed Aug 23 22:02:06 IST 2006

> -----Original Message-----
> From: mailscanner-bounces at [mailto:mailscanner-
> bounces at] On Behalf Of Julian Field
> Sent: August 23, 2006 4:29 PM
> To: MailScanner discussion
> Subject: Re: gif attachments
> Try implementing greylisting on your servers. This has helped a lot with
> this problem on my systems.
> Even if you set the greylisting delay as low as 5 minutes.

My big fear w/ Greylisting is that a (legitmate) SMTP server somewhere won't respect the "try again later" code, and instead just fail to deliver the mail.  I've heard rumours that some of the larger webmail providers exhibit this behaviour.


 °v°  Daniel Maher
/(_)\ Administrateur Système Unix
 ^ ^  Unix System Administrator
Sentio aliquos togatos contra me conspirare.

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