I have a situation where an email recipient is asked for a user name and password upon opening an email that has been processed by Exclaimer. The userid and password pop-up prompt appears when the user opens the mail item. I have traced the issue to Exclaimer and am hoping for some guidance on how to resolve.
Environment is Exchange 2003, Exclaimer 4.30. Clients use Outlook 2003 and OWA. One of the custom rules uses a small (approx. 1KB) image followed by some text. Exclaimer appends the image and text to every internal and external email.
Recently, several end-users have complained that they are repeatedly prompted for user name and password when attempting to read some email items. These emails have been sent using OWA. I have not seen a case where this issues arises from Outlook 2003. I cannot create the issue - it seems arbitrary.
I did a View Source on these email items. Below is an excerpt from the viewed source:
<FONT face=Arial size=2><IMG alt="" hspace=0 src="http://mail/exchange/SendingUserFirstName.SendingUserSurname/Drafts/RE:%20Three%20Repeated%20Emails%20(HD80872).EML/1_multipart/tree.picture" align=baseline border=0></FONT>
I've replaced the user's name with SendingUserFirstName.SendingUserSurname.
I also did a View Source on emails where the issue does not occur. Below is an excerpt from the viewed source:
<FONT FACE="Arial" SIZE="2"><IMG ALT="" HSPACE="0" src="cid:5b17d5a6af@52bc4a2d-7a72" ALIGN="baseline" BORDER="0"></FONT>
Notice the value after the src parameter. In the emails where no issue exists, it's as if the image has been embedded in the email. The emails where the issue does exist references a file on the originator's email server.
The pop-up prompt appears to be asking for security credentials to access the file (i.e. the 1KB image) from the originating server. Any ideas?
Thanks.