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

Gary Stainburn gary at ringways.co.uk
Thu May 5 14:56:09 UTC 2016

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:
> 02 LOGIN user password
> 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 
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 

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