Seems like a good argument for a gateway based anti-spam system. --------------------------------- Sent from my BlackBerry Wireless Handheld
----- Original Message ----- From: John Wilcox <johnw...@gmail.com> To: MS-Exchange Admin Issues <exchangelist@lyris.sunbelt-software.com> Sent: Tue Jan 13 12:20:40 2009 Subject: Maximum sender address size limit Has anyone come across the issue of Exchange Server 2007 rejecting messages because the SMTP envelope sender address was too large. Some messages from Yahoo have sender addresses of upwards of 200 characters and are being rejected. For example: <alerts.ijytkwcjhbetoelekjpjavsmctgbxxov3qo5mfiuzyivmhqwlmi4zfguzsi5gwo6jwobyfoxzxjjhuky22krldkrjxoriuc...gjru45dyo43ha53zmmzdc3lwkbvfuqstinmw6sdhnfauirtzpizgoljn-tokenned=domain....@returns.bulk.yahoo.com> The NDR lists "501 5.1.7 Invalid address and 501 5.6.0 Data format error" error codes. Is there a workaround or fix for this issue? ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~ ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
