Hmc Mail Checker 22 -

0 */6 * * * /usr/local/bin/hmc-mail-checker22 --domain contoso.com --quick-test || echo "HMC Mail Check failed at $(date)" | mail -s "HMC 22 Alert" admin@contoso.com | Feature | HMC Mail Checker 22 | MXToolbox (Web) | Swaks | | :--- | :--- | :--- | :--- | | HMC queue integration | Yes | No | No | | HMC authentication backend (MySQL) | Yes | No | No | | Cost | Free (with HMC license) | Freemium | Free | | IPv6 toggle | Yes (--prefer-ipv6) | Limited | Yes | | Reports HMC deferred reasons | Yes (e.g., "rate limit exceeded") | No | No |

define command command_name check_hmc_mail command_line /usr/local/bin/hmc-mail-checker22 --domain $ARG1$ --to $ARG2$ --monitor-mode hmc mail checker 22

hmc-mail-checker22 --host mail.contoso.com --port 587 --auth login --user admin@contoso.com --pass secure123 --send-data --subject "HMC Test" --body "This is a diagnostic mail from Checker 22." For a global view of the queue: hmc mail checker 22

export PATH=$PATH:/opt/hmc/bin echo 'export PATH=$PATH:/opt/hmc/bin' >> ~/.bashrc Alternatively, create a symlink: hmc mail checker 22

sudo rpm -Uvh https://repo.hmc.com/hmc-release-22-1.noarch.rpm sudo add-apt-repository ppa:hmc/22 sudo apt update sudo apt install hmc-mail-checker22 After installation, the binary is available as hmc-mail-checker22 . You can verify the version with:

In the fast-paced world of enterprise IT and managed hosting, email deliverability remains a cornerstone of professional communication. For administrators working with HMC (Hosting Mail Control) systems—particularly legacy or customized versions—tools like the HMC Mail Checker 22 have become indispensable.

hmc-mail-checker22 --test-alias postmaster --expected-forward admin@contoso.com Add this to root's crontab to run a check every 6 hours and email the administrator: