Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I have setup a receiving Postfix mail server. Here i have custom code written that parses the whole mail received by postfix and use the headers, body and attachments separately for different uses.

I have currently added SPF and DKIM checks in postfix that result in appending of their results in the mail header to indicate about the character of the mail.

Also i am planning to implement postfix anti-UCE features using DNS based Real time black hole lists (DNSRBL), for this i have added the following:

'smtpd_recipient_restrictions = reject_rbl_client zen.spamhaus.org, reject_rbl_client bl.spamcop.net'

in my Postfix's main.cf file.

My question is, how can I append the results of this check inside the mail headers that are being received?

Thanks in advance!!!

Ashish

share|improve this question

1 Answer 1

up vote 1 down vote accepted

Could you extend your custom parsing to programatically query the RBL in question and then handle the response? i.e., pass the sending address to the RBL, get response, add X- header.

You'd probably want to turn off the smtpd_recipient restrictions if you did this just to reduce the number of hits against the RBL servers.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.