how to setup IMAPs with letsencrypt

[Jean-Daniel Dupas]

> Le 22 avr. 2022 à 01:50, Jeremy Ardley <jeremy at ardley.org> a écrit :
> 
> 
> 
> On 22/4/22 7:44 am, alice at coakmail.com <mailto:alice at coakmail.com> wrote:
>>> On 22/4/22 7:25 am, alice at coakmail.com <mailto:alice at coakmail.com> wrote:
>>> 
>> Thanks. I will give a try.
>> after enabling SSL, can I disable port 143 entirely?
>> 
> Probably a bad idea. Many clients use STARTTTLS on port 143 rather than TLS on port 993
> 

While it's true for SMTP, my experience is that IMAP clients prefer imaps in 993 instead of STARTTLS. 

I have a server with only port 993 opened, and almost never had any issue with client configuration.

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