Panic: runtime error: invalid memory address or nil pointer dereference

[matheuskknd]

Hey there, how are you doing?

First of all, thank you for making this good peace of software available to all of us, it helped me a lot in thobbleshots, etc.

I'm getting this error when trying to test connectivity to a Microsoft SMTP server:

C:\Users\user\Downloads\ssl-handshake-v1.6.2-windows-amd64>ssl-handshake.exe smtp-legacy.office365.com:587
Starting ssl-handshake v1.6.1 ( https://github.com/tuladhar/ssl-handshake ) at Mon, 08 Jul 2024 17:34:38 -03
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x18 pc=0x4ed58f]

goroutine 1 [running]:
github.com/tuladhar/ssl-handshake/internal.(*SSLHandshake).Start(0xc00009e090)
        /github/workspace/internal/sslhandshake.go:119 +0x36f
main.main()
        /github/workspace/main.go:26 +0x145

Could you give a look, pls?
Best regards