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This is completely outside my area of expertise - I need to generate and install my own cert for SMTP/TLS (port 465) for testing on a Debian 5.0.8 VPS (and also eventually for HTTPS).

I can find plenty of resources detailing how to generate your own self signed cert, but I've no idea what to then do with it(!). I assume there's somewhere central that openssl stores its certs?

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What to do with generated certificate depends on your MTA and you didn't mention which one you have. –  AlexD Jun 26 '11 at 14:26
I didn't realise - I thought certs were system-wide. The MTA is Qmail. I'll have a look at the docs. –  edoloughlin Jun 26 '11 at 16:54

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