<domain *> max-smtp-out 25 max-msg-rate 50/s max-recipients-per-msg 1000 use-rs yes smtp-starttls if-supported vmta default-vmta </domain>
<domain *> dkim-sign yes dkim-signature dkim dkim-identity mail.your-domain.com dkim-key-file /etc/pmta/dkim/your-domain.com.pem dkim-selector your-dkim-selector dkim-headers "From:Subject:To:Date" </domain> sample powermta configuration file hot
smtp-timeout 60s connection-timeout 30s read-timeout 60s write-timeout 60s dns-timeout 10s virtual-mta vmta1 virtual-mta vmta2
<domain *> max-msg-rate unlimited max-smtp-msg-rate 100/h max-connections 10 smtp-port 25 You need to know who opened the concert
# Bounce handling
bounce-after 5d
# Retry logic (Backoff)
retry-after 5m
# DKIM Signing globally
domain-key big-signer,,$domain,/etc/pmta/dkim.key
You need to know who opened the concert invite and who deleted the travel voucher. PowerMTA logs must feed into your analytics (Splunk, Tableau, or custom dashboard).
# Access log for engagement tracking
<acct-file /var/log/pmta/access.log>
acct-format "%d\t%t\t%p\t%s\t%vmta%\t%env-sender%\t%rcpt%\t%status%\t%size%\t%msgid%"
acct-file-rollback-size 2G
acct-file-rollback-time 86400
</acct-file>