Hi, hope someone has a few ideas. We are running Outlook 98/2000 as the client on MS Exchange 5.5 email system. We have a number of users who regularly email large attachments to users with externally hosted email accounts. The external users have to dial up to collect emails and complain frequently about download times for attachments. What I would like to know is there a utility within Outlook or Exchange which will pop up a warning when an internal user clicks "send" that the attachment is over a certain size, e.g. 1Mb and to give them the option to abandon sending the email at that point. The nearest I've see is an Outlook VB script on Slipstick which pops up asking the sender to confirm sending of an attachment but nothing specific to attachment size. Sorry for the long post.