On 06/27/2010 09:47 PM, Tim wrote: > On Sun, 2010-06-27 at 14:08 -0400, Genes MailLists wrote: >> So if you're gonna gray list - please whitelist all the standard ISP >> outbound mx hosts ... > > That's gotta be a huge list. And won't some of them be spam sources, > anyway? > Not huge at all - I'm doing this for the outbound MX's of trusted mail senders. Google uses about 2,700 outbound .. they are all readily available. So we're talking a few thousand hosts. And not doing this only causes a 3 second delay anyway. Your question if gmail official hosts sends spam - even if it does, the greet pause is not going to help in this case anyway - because gmail servers follow the correct smtp protocols. Spammer machines often dont - they send out the mail and ignore all protocols - that why greet pause is so effective. This splat-with-no wait is classic of spammers - e.g. a pc bot - they program them to send the header, send the body. close. This kind of bot will not get through the greet pause delay. gene -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
