in reply to Mail::Sender and TLS 1.2

Have you tried specifying ssl_version as in the documentation?

Also, if you haven't read the documentation you might not know that Mail::Sender is deprecated.

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Re^2: Mail::Sender and TLS 1.2
by Anonymous Monk on Apr 15, 2020 at 11:28 UTC
    Yes, I am aware that Mail::Sender is deprecated and we will switch to another solution on the long run. For new, having TLS 1.2 with Mail::Sender would help a lot.