Enterprise wont EMAIL invoices

I have just installed Reckon Enterprise onto my laptop.

I want to email monthly invoices as I did last month (on an old laptop). Only now it wont send. First it says it cannot connect to the server (gmail).

Second attempt using a totally different email address and email server (ie NOT google) also resulted in failure to send and similar error message.

Given I have tried two completed unrelated email servers (and double/triple checked the settings) it would seem to be a Reckon issue, NOT an internet / email provider issue.

Can someone please assist as there seems to be no way to test it except to send an invoice!