Is there have any cpanel plugin or process through which we can track or saved the mails in sent items which is delivering from other client devices or service authnticating by the specific cpanel smtp ? If any customization required please let me know.
Mail sent via a script will not be shown in the user's sent email, technically because it's not actually sent using the user's email. These emails are tracked via the exim logs and running something like the following would get you all email sent from a script:
You could take it a bit further and make the output look really nice with something like this one-liner I just wrote:
Which will output the number of emails sent and the directory location they were sent from, sorted into ascending numerical order
Code:
grep "cwd=/home/" /var/log/exim_mainlog
Code:
grep "cwd=/home/" /var/log/exim_mainlog |awk '{print $3,$14}'|sed 's/cwd=//' |sort |uniq -c |sort -n