From: berny (berny.mailseznam.cz)
Date: Fri Apr 20 2007 - 13:03:09 CDT

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

Hi,

I have 2 questions about postfix:

1) I'm going to use DNSBL bloking of spam mails. Queries go over DNS.
   How is it with caching in DNS server? I think that response to my DNS server should
have short TTL. Can you tell me how is it with positive and negative caching?

2) If I will have postfix as outgoing server for my clients, how can I found out, if
someone is sending spam? Can postfix limit number of mail/some time period?
Or can postfix control mass mailing, etc. 1000 mails in one hour?

THX for any answer

berny

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]