Saving messages to Sent / Draft folder fails (IMAP)

[Mumia76]

Hi

I have a problem with saving sent messages to draft / sent folders. When connected to the server trough a local network. I've tried multiple email clients, the same issue is present with both.
When I send a message, it is sent, but then the subsequent saving of the message fails with a timeout, thus I have no record of outgoing messages.
Same thing happens when I Try to save a composed message as a draft.
The Sent / Draft folders both exist on the server, and when I connect to the IMAP server from an external network (From the internet) there is no such problem the messages can be saved.

What could be the cause?

[adrien]

Hi

are you able to read messages in the Inbox?

sending uses SMTP, and IMAP is used to append the messages to the sent items and draft folders

Regards

Adrien de Croy