SMTP won't send emails randomly
I am using Filemaker 10 and running scripts that send emails via SMTP. This worked fine for over a year then my company changed the server used to send emails. After this some emails wouldn't send via SMTP giving the error message "Email was not sent successfully". This appears to be random from my point of view. I have just tested it today, sending 20 emails to myself. The first 18 sent then the last 2 failed without anything being changed. Then no more emails could be sent at all after that. I was wondering if anyone has come across any similar problems and if there were any solutions?