Re: [CentOS] [MASSMAIL] Dovecot on C7.2 - secure internet access

On Thursday 05 May 2016 15:34:48 Alexander Dalloz wrote:

Connect with:

openssl s_client -connect <your server IP address>:143 -starttls imap

Then issue IMAP commands:

01 CAPABILITY 02 LOGIN user password 03 LOGOUT

That should be successful and you should have seen the configured AUTH mechanisms. Now try without transport layer security:

telnet <your server IP address> 143

01 LOGIN user password

That should be forbidden because of LOGINDISABLED.

Regards

Alexander

Thanks for this Alexander.

I tried this from inside my LAN and both the openssl and the telnet sessions worked. I then tried it from outside my LAN and the openssl session worked while the telnet session failed.

Exactly what I wanted. That does beg the question as to why Thunderbird failed.