Hi Folks, We are experiencing an issue with the web interface when customers have MTU's set below the standard 1500 (actually, Imail's tech support saw the issue too, not sure if their MTU is set low).
Here is the setup that causes the issue: Windows 2000 pro/server (we've tried on 4 win2k boxes, seemed to work on XP) Ethernet/dialup/DSL/etc. Any switch any network card Customer has 100 messages per page in web interface Customer has low MTU (576 for example) Imail 8.0x What happens: Customer selects all of the messages on a screen, clicks delete. Depending on the customer, they only delete a certain amount (0,22,73, etc). What we have found: If you packet sniff the session, you'll see that the http post is broken up into different packets. For each message that the clients requests, there are variables in the post for the message numbers to delete, at the end of say the first or second packet we see the above referenced message number, 22, 66, etc. After that packet, there are more packets with the rest of the messages up to 100. It's like the web interface is ignoring the rest of the post. What IPSwitch is going to do: They say they are going to pass this problem onto the developer and they'll let me know what they find. In the past, this hasn't worked out so well. What I'd like to see happen: If anyone has the time to set their computer to 576 MTU, set their web interface to 100 messages and see if this happens to them, that would be great. We can also post examples of the packet sniffing going on. By the way, we have sniffed(maybe not the right term) on the mail server using a Layered Service Provider. This showed us that the packets really were getting into the TCP/IP stack of the server. ///********************************************************************* ******************************** ///Here is a sample of a post that we packet sniffed. ////Packet 1 POST /Xa69e9b99999dc9c972c2edee/multibtn.cgi HTTP/1.1 Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, application/x-shockwave-flash, */* Referer: http://mail.rvi.net/Xa69e9b99999dc9c972c2edee/readmail.42581.cgi?mbx=Del eted&msgsort=1 Accept-Language: en-us Content-Type: application/x-www-form-urlencoded Accept-Encoding: gzip, deflate User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows 98) Host: mail.rvi.net Content-Length: 2190 Connection: Keep-Alive Cache-Control: no-cache ////Packet 2 page=multibtn&uid=jim&mbx=Deleted&mbxdate=37376&gotopage=1&imail_action= Delete&msgsort=1x351045167&msgsort=2x351044999&msgsort=3x351045000&msgso rt=4x351045002&msgsort=5x351045001&msgsort=6x351045168&msgsort=7x3510451 69&msgsort=8x351045170&msgsort=9x351045171&msgsort=10x351045172&msgsort= 11x351045173&msgsort=12x351045174&msgsort=13x351045175&msgsort=14x351045 176&msgsort=15x351045177&msgsort=16x351045178&msgsort=17x351045179&msgso rt=18x351045003&msgsort=19x351045180&msgsort=20x351045181&msgsort=21x351 045182&msgsort=22x351045183&msgs ////Packet 3 ort=23x351045184&msgsort=24x351045185&msgsort=25x351045186&msgsort=26x35 1045187&msgsort=27x351045188&msgsort=28x351045004&msgsort=29x351045189&m sgsort=30x351045190&msgsort=31x351045191&msgsort=32x351045192&msgsort=33 x351045005&msgsort=34x351045193&msgsort=35x351044998&msgsort=36x35104519 4&msgsort=37x351045006&msgsort=38x351045195&msgsort=39x351045007&msgsort =40x351045008&msgsort=41x351045196&msgsort=42x351045197&msgsort=43x35104 5198&msgsort=44x351045199&msgsort=45x351045200&msgsort=46x351045201&msgs ort=47x351045202&msgsort=48x351045203&msgsort=49x351045204&msgsort=50x35 1045621&msgsort=51x351045205&msgsort=52x351045206&msgsort=53x351045207&m sgsort=54x351045208&msgsort=55x351045209&msgsort=56x351045210&msgsort=57 x351045622&msgsort=58x351045623&msgsort=59x351045211&msgsort=60x35104521 2&msgsort=61x351045213&msgsort=62x351045214&msgsort=63x351045215&msgsort =64x351045216&msgsort=65x351045217&msgsort=66x351045218&msgsort=67x35104 5219&msgsort=68x351045220&msgsort=69x351045221&msgsort=70x351045222&msgs ort=71x351045223&msgsort=72x351045224&msgsort=73x351045225&msgso ////Packet 4 rt=74x351045226&msgsort=75x351045227&msgsort=76x351045228&msgsort=77x351 045229&msgsort=78x351045230&msgsort=79x351045009&msgsort=80x351045010&ms gsort=81x351045231&msgsort=82x351045232&msgsort=83x351045233&msgsort=84x 351045234&msgsort=85x351045011&msgsort=86x351045235&msgsort=87x351045236 &msgsort=88x351045237&msgsort=89x351045012&msgsort=90x351045013&msgsort= 91x351045238&msgsort=92x351045239&msgsort=93x351045240&msgsort=94x351045 014&msgsort=95x351045241&msgsort=96x351045242&msgsort=97x351045243&msgso rt=98x351045244&msgsort=99x351045245&msgsort=100x351045624&lstFolderList =Draft ///********************************************************************* ******************************** Thanks, Daniel ---------------------------------------------- Daniel J. Vance, CCNA | [EMAIL PROTECTED] Network Administrator | http://www.uci.net 541-472-0733 | UNICOM (ASN 14342) To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
