Confusing logs: Within a STARTTLS session: "Server does not support STARTTLS"

[ghost]

After starting a STARTTLS session, an additional EHLO command is sent by DMA. Its response is parsed and certain information is printed to the logs.

There are servers that do not advertise STARTTLS within an already active STARTTLS session. Example: smtp.office365.com (one may use openssl s_client to check this).

For these kind of servers, the logs are something like the following:

• "Server supports STARTTLS"
• "SSL initialization successful"
• "Server does not support STARTTLS"

which may be considered confusing.

Please let me know if there is a misunderstanding on my side about this issue being only relevant for the logs.

[corecode]

these are DEBUG log messages and can be ignored.