Fetchmail 6.3.26 indeed does not set the SNI. The original fetchmail 6.3.26 also does not support TLS1.2+ or thereabouts, see https://gitlab.com/fetchmail/fetchmail/blob/legacy_63/socket.c#L906 - if Ubuntu's shipped version does, it is not the original authentic fetchmail 6.3.26.
Fetchmail 6.3.26 indeed does not set the SNI. The original fetchmail 6.3.26 also does not support TLS1.2+ or thereabouts, see https:/ /gitlab. com/fetchmail/ fetchmail/ blob/legacy_ 63/socket. c#L906 - if Ubuntu's shipped version does, it is not the original authentic fetchmail 6.3.26.