We switched ISP’s and went from forwarding mail to being a mail handler on our Exchange 5.5 IMC. We can send mail with no problem if it has no attachment. When an attchment of any size is sent the mail goes into the queue and has about a 20% chance of going out. There is no pattern to which domains we can send attachments to. We have also found out that some of the attachments that did make it through were corrupt and unreadable – but not all. Any help is greatly appreciated.
