545e6f7ed7
The multi-IP rotation was built to spread risk while DKIM was broken (fixed
2026-06-17) and after the May 30-31 over-volume blast. With DKIM signing
correctly, spreading ~3k trucking msgs/day across 12 IPs (.94-.105) + ~1.2k
healthcare msgs/day across 3 IPs (.107-.109) gave each IP far too little
per-receiver volume to build reputation. Gmail/Outlook read it as snowshoe spam
and reputation-blocked ~200 msgs/day ("very low reputation of the sending
domain") -> 0 human clicks, 0 sales.
Consolidate to ONE IP per stream so each accrues real reputation:
- trucking: pw-mta-warmup ALL=(out05) -> randmap collapses to {out05:} = .94
- healthcare: listmonk-hc SMTP servers 2/3 (ports 2527/2528 -> .108/.109)
disabled in DB; all HC mail now egresses .107 (hcmta01). [applied live]
Applied live: transport_maps now randmap:{out05:}; listmonk-hc restarted.
To re-expand later: add transports back to ALL + re-enable the HC SMTP servers.
|
||
|---|---|---|
| .. | ||
| ansible | ||
| cron | ||
| fail2ban | ||
| firewall | ||
| k8s | ||
| monitoring | ||
| mta-sts | ||
| nginx | ||
| postfix | ||
| systemd | ||