Hmm - Mercury wants certificate in format PEM - not CER.

Bye    Olaf

I setting SMTP Server enable support  for SSL/TLS and create certificate for connection success. In General tab, I setting listen on TCP/IP port 465.

The same, I setting POP3 server enable support  for SSL/TLS and browse path to certificate which is created above. In General tab, I setting listen on TCP/IP port 995.

.Back with ThunderBird, I can't create account on this app with SSL/TLS

Who do you want to help me? Thanks!

I don't know what you are asking.  Thunderbird has an SSL/TLS option for Connection security in the SMTP Server configuration.  Are you saying you can't get that to work?

I don't have experience specific to Thunderbird and Mercury but I installed Thunderbird awhile ago just to check it out and had two outgoing servers working with SSL/TLS.

I'm setting SMTP Server and POP3 Server to enable SSL as show the picture and ThunderBird don't connect to 2 server this. Is there something wrong here?

This is screen when I use ThunderBird connect 2 server (SMTP Server and POP3 Server). And I'm sure that I login to correct password and username

It seems you have an old version of Mercury. Upgrade please!

The port settings for POP3 should be 995. I do not use POP3 so I can't tell you, if STARTTLS and (i think standing there) "normal password" will work.

With SMTP I have enabled alternate port 587 and configured direct-connect SSL on port 465 (with your old Mercury you do not have that option in the configuration). In Thunderbird SSL/TLS on port 587 with encrypted password (because enabled option with "weak" authentification, otherwise normal password may do it) works for me.

bye    Olaf

Thanks for your help!

I have a another question, I created a myCA (gen by openssl : "https://gist.github.com/fntlnz/cf14feb5a46b2eda428e000157447309") and use this to create certificate for SMTP Server and POP3 Server on Mercury (myServer.cer). Next, I use myCA to sign the created myServer.cer. Then setting file path certificate SSL is myCA.cer.In ThunderBird, I import this myCA to ManagerCertificate for users.

And now, I can't connect to server SMTP. Where am I wrong?

Thanks a lot