See this thread for a similar case.

I ended up isolating the SSL bits of code in a separate script, and using bi-di IPC (see: IPC::Open2) to circumvent the issue of Crypt::SSLeay not being thread-safe. If you don't need bi-di communication, just use perl's open.

In reply to Re: Thread-safe SSL IMAP by onelesd
in thread Thread-safe SSL IMAP by gxbacher

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