When setting up a 'Send Email' or a 'PlanetPress Image' output using SMTP, the first thing to consider are the rules of the SMTP server itself(maximum size, etc), which of course cannot be bypassed by the PlanetPress Watch process.
With the SMTP protocol, the main issue is the fact emails which have not been sent are not returned or stored anywhere, so it is much more difficult to monitor success or failure and react accordingly. The PlanetPress Image log files indicate if generating the PDF was succesful, while the PlanetPress Watch log files report the parsed addresses and if the message was sent to the SMTP server or not : only the SMTP server logs will indicate whether or not the email was actually sent, and why in case of failure.


Pierre P