Mail System Set-Up
All-Round Invoice are default set to use Outlook Express (or Windows mail) for all sending of mail.
You can configure All-Round Invoice to use Outlook or SMTP instead so you can use almost any possible mail system.
This is done in ‘Setup –> Configure All-Round Invoice’ on the tab ‘Mail settings’.
Here are setings for Outlook Express
Here for Outlook
And here for SMTP
The shown configuration works with Gmail.