I have just been trying unsuccessfully to send my son in New Zealand a message about my daughter. There was no attachment and it was just entitled with my daughters first name. The server was muttering darkly about problems with the attachment or malware/phishing. It went OK when I modified the title a bit.
Can anyone explain this as I am very puzzled!
What was the part you modified because there are certain "trigger" words that will attract the attention of the spam filters.
To my daughters first name I appended " - progress" in the message title