Dan Christensen jdc@uwo.ca writes:
I've installed dovecot 1:1.1.11-0ubuntu4.1 on my jaunty system. Access from the same host works well, but when I access remotely (from various MUAs and networks) I get *very* frequent disconnects. Authentication is fine, and I can usually open a mail folder, but larger operations such as copying 20 messages into an imap folder always get disconnected. ... The clients I have tried are Gnus (with starttls and gnutls-cli) and evolution, on a jaunty system; and k9mail-beta on an HTC Dream cell phone. All four configurations show similar connection issues, and the jaunty client system has a solid DSL connection to the server.
If I configure dovecot to listen on a different port, I don't have these troubles. So I suspect some network throttling of imap data somewhere. My contact at the university doesn't think this happens, and I'd be surprised if my ISP does this, but I can't think of any other explanation.
Dan