Getting content/more info on TLS < 1.2 SES notifications

I started receiving warnings from AWS about SMTP messages being sent using <TLS v1.2 a few months ago. I have disabled <v1.2 TLS on all the servers that I knew of sending mail through SES, and those IPs are no longer causing an issue. I'm still getting the warning email with only a small number of messages listed with IPs that I'm having trouble identifying. Is there any way that anyone knows of that I can get more information on these messages? Ideally something like the body or subject would let me know which of our systems is still using the old TLS versions.

I tried looking into contacting support, but we only have "basic" support, which doesn't seem to give us any access to a technical support, if anyone can give any guidance it would be appreciated!