The server at the other end would be configured simply to delete all messages with .zip attachments for security reasons as some virus's / scripts are called this. The reason for not sending a notification could be that the anti-virus software is doing the removal of the message before it hits the mail queue. Most virus and spam traps are configured like this. Mail is diverted first through the anti-virus / spam software, processed and then routed back to the mail queue. Rob
On 26/9/05 2:03 PM, "Severin Crisp" <[EMAIL PROTECTED]> wrote: > I have had occasion to send an email with an attachment which was > a .zip folder containing several items. > The email was never seen by the recipient, sent twice, and no message > of warning came back to me. I am familiar with some servers that > will not accept certain types of attachment. > Other emails to the same addressee go through fine, either with no > attachment or with .doc or .jpg files (not zipped). The same zipped > attachment will come back to one of my own addresses correctly. > Has anyone any thoughts on this. I assume it is the target server > but why does it send no message back to me? > Severin Crisp

