Header_checks inconsistent with postmap query

I'm trying to write a simple header_check rule and seeing inconsistent results between testing with "postmap -q" and postfix processing an incoming message.  We need to match header lines with a specific SFV value and match the domain of the message recipient. Here are the relevant parts of the

Increasing smtpd_recipient_limit

We have a pool of postfix servers that mostly relay mail from internal applications to user inboxes.  One of the application teams is trying to send messages to more then 1000 recipients for a single message.  The default  ​smtpd_recipient_limit of 1000 recipients is preventing this.  What are th

Short term DNS issue causing Postfix to queue messages

ing the messages b) adjust the timeout before postfix stops queueing messages Thanks, Eric Wilkison

Re: incoming log entries missing during peak arrival time

Syslog can drop the logs under heavy load. Look for these logs to confirm: xxx messages lost due to rate-limiting Add to rsyslog.conf to disable rate limiting (assuming your using imjournal): $imjournalRatelimitInterval 0 $imjournalRatelimitBurst 0 Eric

Re: Virtual mapping without classifying

Thank you for the input. Our virtual alias files are script generated and updated periodically. I had considered adding a map for each user for each of the domains. However, we have about 80 domains. That times our 30k users and we'd have almost 2.5 million aliases. Seems like a very large l