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Old 5th June 2008, 17:44
Rocky Rocky is offline
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Tom,
Create /etc/postfix/helo_access so that it looks like the below:

Code:
#Helo Access
65.211.156.114  OK
spam.klinktech.net  OK
mail.ksfuel.com  OK
They run:
Code:
postmap /etc/postfix/helo_access
If you've created a /etc/postfix/sender_access, add the following to it like this:
Code:
#Sender Access
65.211.156.114  OK
spam.klinktech.net  OK
mail.ksfuel.com  OK
Then run:
Code:
postmap /etc/postfix/sender_access
Make sure to edit /etc/postfix/main.cf and verify that the following settings are correct:

Code:
 
smtpd_delay_reject = yes
smtpd_helo_required = yes
smtpd_helo_restrictions =
        permit_mynetworks,
        check_helo_access hash:/etc/postfix/helo_access,
        reject_invalid_hostname,
        permit
smtpd_sender_restrictions =
        check_sender_access hash:/etc/postfix/sender_access,
        reject_non_fqdn_sender,
        reject_unknown_sender_domain,
        permit
Finally, run:
Code:
 
postfix reload
Let me know how that turns out.
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