johnl at iecc
Apr 20, 2009, 8:16 AM
Post #1 of 1
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>Giving rejections during an SMTP session provides a means for a
>spammer to determine legitimate addresses.
Um, spammers haven't bothered doing address testing since about 1999.
When you're blasting out spam with botnets, you just send the mail and
ignore the return codes. I have a spam trap that gives a 55x response
to every message, and they just hammer on the same old addresses.
Inline rejects are absolutely best practice these days. See, for
example, the OECD's antispam kit at
http://www.oecd-antispam.org/article.php3?id_article=232
>I think a greater problem is differentiating which bounces are as a
>result of spam and which ones aren't.
That's why you reject, so you don't have to.
R's,
John
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