Hmc Mail Checker 22

Many administrators wonder why they need a version-specific checker. The answer lies in structural changes. HMC Mail Checker 22 was released to address significant differences from versions 18, 19, and 20:

If you attempt to use an older HMC Mail Checker (e.g., version 18 or 19) on a v22 server, you will likely receive ERROR: Incompatible table structure or Unrecognized maildir format. hmc mail checker 22

hmc-mail-checker22 --full-report --output hmc-report-$(date +%Y%m%d).html

This generates an HTML report with charts on queue growth, average delivery time, and SPF success rate. Many administrators wonder why they need a version-specific

If you arrived here looking for Pitney Bowes or Hasler mailing machine supplies (a common confusion with "HMC" standing for Heavy Mail Capacity or similar): If you attempt to use an older HMC Mail Checker (e