RE: [IMail Forum] Outlook Time Out Problems

[Markus]

Title: Nachricht

Anyone else having some 10054-lines in his logfiles, and is interested to solve the problem?   Specially if a user with a slow connection (64k) has messages > 5 MB in his mailbox this will cause repeatedly the same situation: The user with the already slow connection trys to download this message again and again. He recieves messages before the big one multiple times because they was not deleted after the timeout.   All messages listet after the big one will not be downloaded. So in the worst case after a certain time the user mailbox is full and new messages are bounced back to the sender.   When the mailbox user calls our support we can't do very much. We transfer the message causing the failure with the Imail client to another temporary mailbox, so he can download and free up his mailbox. But there is no way to transfer this message.   An important note: In ANY case, over the same slow connection users can download files much bigger then 5 MB from web-servers, ftp-servers, and also other (not IMail) pop3-servers without any problem. The download is not the fastest - there can also be delay times greater then 10000 milliseconds - but it works.   Markus     -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Duane Boudreau Sent: Friday, May 30, 2003 11:17 PM To: [EMAIL PROTECTED] Subject: RE: [IMail Forum] Outlook Time Out Problems Those messages are definitely showing up in my logs.   Duane -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Markus Sent: Friday, May 30, 2003 4:12 PM To: [EMAIL PROTECTED] Subject: RE: [IMail Forum] Outlook Time Out Problems Hi Duane,   Can you find some lines containing "send error 10054" (SMTP) or "send error [IP] 10054" (POP3) in your logfiles?   This is happening on our server (ver 7.15) several times any day and was already so on ver 6. Any time the IMail-Server has dropped the SMTP- or POP3-connection to the client. The client has his timeout (usually 60 seconds) after them he returns an error message.   As I has understand in several tests from different clients, connection types and connection speeds this happens any time if a client (any client!) connects over a slow (or satured) line to an IMail-Server. If some TCP-Packets has delays greater ~7500 to ~9000 milliseconds the mailserver silently drops the connection to the client and writes the 10054-error in his logfile.   Until now I haven't found any solution for this. I've tried to set up a POP3-Proxy beside the IMail-Server hoping that this can level out the high delayed packets from the client. Unfortunately without the desired result.   I assume that IMail ver x.x has a hardcoded timeout for the next TCP-packet. If the time between two packets is greater then around 8000 milliseconds the connection will be dropped.   I'm pretty sure that this has absolutely nothing to do with certain motherboards, NIC's any other hardware or windows server settings. In the same time that certain clients (with a slow connection to our server) has the timeout problems dozens of other clients can send and recieve messages like a champion.   Markus     -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Duane Boudreau Sent: Friday, May 30, 2003 9:45 PM To: [EMAIL PROTECTED] Subject: [IMail Forum] Outlook Time Out Problems Hi All,   I have one client that is having issues trying to email out using Outlook. When they send out files 1mg+ the email gets to 85% done and then hangs up and they get timeout errors. I am running Imail V8.00.   I've gone thru everything I can thing I can think of:  - Removed incoming and out going email size limits  - Upgraded to V8.00 (from 7.07)  - Freed up disk space  - Rebooted the server (nothing else worked so....)   So far nothing has helped.   Any ideas what I should try next?   TIA, Duane