Unable to send mail with attachments

[Ravi]

I am creating a mailitem with attachments in my C# .NET application. Then we
the message item to add the email address and then click 'send' button to
send the email. We are using a add-in called MaX Compression for
compressing mail.

When this add-in is turned on we are able to send any plain email with out
any attachements.

When we add the attachements in our application, do a display, add address
and then click 'send' we get the following error
'Outlook Operation cannot be performed because the object has been deleted'.
However if we do the same thing with MaX Compression add-in disabled, we
are able to send the mail with attachements.

Also another thing to note is that when we create a mail from outlook
client, add attachements, it works fine whether MaX compression is enabled or
disabled.
Thanks
Ravi

 

[Ken Slovak - [MVP - Outlook]]

So contact the vendor of that application and see what they are doing wrong.
No one here can help with that addin problem.

 

[Ravi]

Thank you Ken,

I have already opened ticket with the vendor, just checking if anyone
faced a similar issue. The issue could be related to outlook also because I
am able to create and send email with attachement in outlook client and with
MaX Compression Add-In enabled.
Also if you look at the message received when it fails, its very generic and
I saw many issues with same message on Microsoft KB, ofcourse none of them
are related to this one.

Thanks
Ravi

'Outlook Operation cannot be performed because the object has been deleted'