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What's the usual re-sending time period for SMTP servers?
Hello!
My Postfix SMTP server is off most of the time (because the computer is not always on). I know it's not the way it should be in a production environment, but anyhow...
Since, obviously, I don't wanna miss any mail I get curious. I was trying to send e-mails to myself from different web mail accounts that I have (like Yahoo, GMail etc.). What happened is that after my SMTP server had gone online, it actually received the e-mails that I sent.
Sometimes it wasn't instantaneously, but nevertheless within an hour, if not less. But that's web mail SMTP servers.
What I want to ask is about regular SMTP servers, say, which operate at different IT companies (hosting SMTP servers, corporate SMTP servers etc.) I know that every server can be configured differently, but maybe there's an unwritten standard in the industry or at least just let me know what kind of configuration you personally installed or know about.
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