On Fri, 8 Jun 2018 18:19:14 +0100, Vladimir Tiukhtin stated: >On 08/06/18 18:17, Jerry wrote: >> On Fri, 8 Jun 2018 17:54:28 +0100, Vladimir Tiukhtin stated: >> >>> I am using dovecot 2.2.10 on CentOS 7 >>> >>> Any Outlook versions (2007, 2010, 2013...) hang if I tried to use TLS, >>> it works if I switch in client TLS to SSL. Thunderbird works perfect >>> both scenarios >> {snip} >> >> Seriously, those versions of Outlook are both old and no longer supported. >> In any case, you have already answered your question; ie, use SSL.
>I have tested just now on outlook 2016 - same issue. TLS makes it hanged I am using Outlook 2016 on a Windows 10 Pro amd64 system. Dovecot is running on a FreeBSD 11.1 machine. Dovecot version: 2.3.1 (8e2f634). It is working fine. What port numbers and authentication types are you employing? -- Jerry