My first guess would be that the email server is trying to do a reverse DNS lookup on the host that is opening the imap port.
When the email server is on the PRO network, the lookup succeeds and the transfer goes as expected. When the email server is on the PSN the lookup fails. This isn't a problem in itself, but the amount of time that the email server spends waiting for the DNS response may be causing your imap timeout. Mike Burden Lynk Systems (616)532-4985 [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Mark McBride Sent: Wednesday, August 16, 2000 8:23 AM To: [EMAIL PROTECTED] Subject: Slow IMAP4 Transfers? --------------------- Attention ----------------------------- Online GNAT Box User Forum is Now Open Click the Register link and sign up today http://www.gnatbox.com/cgi-bin/Ultimate.cgi ------------------------------------------------------------- Send postings to: [EMAIL PROTECTED] Access the list archives at: http://www.gnatbox.com/gb-users/ ------------------------------------------------------------- This is PROBABLY simple, but ... I am running an e-mail server on the PSN (NOT using the GB SMTP Proxy) and I've found that requests for e-mail downloads from the IMAP4 service run unbearably slow and generally time-out before completion when they come from an EXT connected computer. They run fine on PRO connections. What I don't understand is what would simply cause a huge delay. My understanding was that packets were either accepted or rejected, not "detained". Have I screwed up the GB configuration somewhere? Where should I start looking? Thanks in advance... -Mark ---------------------------------------------- To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe gb-users your_email_address in the body of the message
