submission handler error

[kamarya]

Describe the bug

I get very often the following error messages in the logs (for both accepted and rejected incoming messages):

Jul 13 18:28:06 vps4323 maddy[2617]: submission: handler error: tls: first record does not look like a TLS handshake
Jul 13 21:20:27 vps4323 maddy[2617]: submission: handler error: EOF
Jul 13 21:20:57 vps4323 maddy[2617]: submission: handler error: EOF
Jul 13 21:21:28 vps4323 maddy[2617]: submission: handler error: EOF

What do you think is wrong?

Multiple repeating error messages

Steps to reproduce

Log files

NA

Configuration file

NA

Environment information

• maddy version: 0.7.1

[foxcpp]

Upstream issue: https://github.com/emersion/go-smtp/issues/236