Newsletter sending blocked

Hi all,
it's second time that my weekly newsletter ( about 400 adress ) stop sending about at 300 adress, and have 97 mail still in queue.
Where i can see a log of sendig to investigate where is a possible problem, like a wrong adress ( maybe .. i thing ) ?

How i can restart sending newsletter from where are last stop ?

tnx

Thanks, i have tried last week and sending newsletter are restarted,
this morning, same problem but i have ask you if are a specific log
to understand why this happen ... any ideas ?

maybe can be interesting to have a button on campaign menu to restart sending ( es delete the pid file )
as a script for whos can't enter in server filemanager from outside office.

regards

If you have an old version of VTECRM maybe you have in the queue some deleted record or some lead that do not exists anymore, because they were converted.
There isn't log for these problems but are solved in last version of VTECRM. Try to update it.