On Mon, 9 Jan 2006, [EMAIL PROTECTED] wrote:
During high load (about 18 imapd logins/second from a webmail system) we
start to get long delays when connecting to port 143. Sometimes, even a
connection refused when attempted from outside localhost.
This sounds like your [x]inetd is throttling the service port. Refer to
the following FAQ:
http://www.washington.edu/imap/IMAP-FAQs/index.html#7.16
for more information.
Defective webmail implementations are known to do this. The typical
problem is that they spawn a new IMAP session for each user's mouse click
instead of keeping a single IMAP session open per user. That bad behavior
defeats much of what is useful in IMAP. However, making a mail access
session be stateful instead of stateless requires some complex
programming, and only a few webmail programs (such as UW's WebPine) do it.
-- Mark --
http://panda.com/mrc
Democracy is two wolves and a sheep deciding what to eat for lunch.
Liberty is a well-armed sheep contesting the vote.
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