Ken Slovak wrote:
Comment out your error handler and see where the code breaks when you
do get an error. An alternative that would also require manual
monitoring would be to set a breakpoint in your code and step the
procedure to see where any errors happen.

the error happens if in rapid succession multiple, subject only or subject
plus one line body emails arrive.

the Sub is not able to parse the received item fast enough and errors on the
2nd received email.

still don't know why and how to solve it.

surely OL2003 should be able to handle hundreds of back-to-back emails?

besides, what's the use of the On Error exit routine if it's not executed on
an error?