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Cool, I did not know that. Are there any other thinkable use cases of keeping messages in a hold queue for a longer period of time, for this option to exist?
by frits1993 6y ago
Cool, I did not know that. Are there any other thinkable use cases of keeping messages in a hold queue for a longer period of time, for this option to exist?
- LinuxBender 6y agoSome sysadmins/postmasters do this to protect against spam floods. They use cron jobs to hold/release emails after validating the envelope contents using tools like MailScanner. Some use that for intercepting test messages [1] I don't have the links handy, but I have also seen some projects in github that utilize hold queues for managing more granular rate limits based on content rather than destination. Some anti-spam tools will also quarantine messages into the hold queue for review. [1] - https://serverfault.com/questions/219173/configure-postfix-to-filter-email-into-hold-queue https://serverfault.com/questions/219173/configure-postfix-t...