Greetings … some neophyte questions please …
Been using GPG4WIN (v3.1.16 loaded) for a couple years but have not had to get into [some] nuts and bolts till now.
GPG4WIN encryption via Outlook (GpgOL plugin) has worked fine in and out with a webhost mail service being used. Pretty much standard mail settings in and out (POP3, SMTP, SSL/TLS, normal authentication for incoming and outgoing).
Changed my outgoing server over to use PostMark mail service who I have for other needs, allowing me to track those messages. However, none of the encrypted messages are getting to them, Have enabled some of the LOG files to see if I can pick anything out but nothing yet. Still have some testing to do.
Sent a note to PostMark and they asked what TLS version the GpgOL plugin is using. Have not found anything that states “GpgOL uses TLS x.x”. Have read some threads that imply it GPG4 is using TLS v1.2 and will soon be 1.3, but no real official statement with respect to TLS versioning.
What I thought is GPG4WIN is encrypting the message before it even is transmitted so a secure connection is not even required. Is that correct?
Will continue testing various settings and reviewing log files but thought I would throw this out there for any GPG4WIN gurus!
Thanks in advance.