[Users] unable to connect to IMAP, logs

[Paul]

On Thu, 14 May 2020 19:37:24 -0300
Franz <169101 at gmail.com> wrote: 

> I am unable to connect to IMAP. When I push the receive button, nothing
> happens. At least when playing with pop3 there was a writing in the left
> lower part of the screen noting that pop3 was trying to connect, but with
> IMAP nothing at all.

Probably mis-configuration. Did you check the FAQ page?
https://www.claws-mail.org/faq/index.php/Using_Claws_Mail_with_Gmail

What does /Tools/Network Log say when you try to fetch mail?

with regards

Paul