Sorry for delayed response. One way you could prevent users from deleting email is to block deleting of records in Access Groups setting. If this is not an option for you please let me know.
are the activity set as Hansamanuals said?
https://www.hansamanuals.com/main/mailnumber___62526/theconf___231/manuals/version___20250224/langcode___es/hwconvindex.htm?shortcode=HW0301SETTINGS_Order...
SendWebRequest3 is a boolean function, so if this returns true and the reply header has an accepted status, you can assume that the data was sent successfully and perform some actions on the record th...