There are countless posts here that answer your question.
You failed to post your Outlook version, so a customized answer to your
special situation cannot be provided.
Suggest searching the group for one of the answers that fit your version.
Use Google Search. Microsoft's search of newsgroups is worthless.
--
Russ Valentine
[MVP-Outlook]
"C Cordes" wrote in message
news
I want to use Email Merge, but for every intended recipient on the list, I
get the following message, with its annoying and time-consuming message:
"A
program is trying to send mail using Item.Send Do you want to allow
this?"

Help me stop the slow-down!
Thanks,
CC