Based on my experience with Exposure emails and an email intercept
There is a good chance that if the AP is married they will have access to the email of the BS because they are trusted. Bad.
They will also know of your existence, and probably your email address so i would suggest you limit the chance that a email is intercepted by:
Create a new gmail account with a sensible name but in no way related to your name.
Gmail rarely gets sent to spam so it will hit the inbox.
Use a matter of fact and non revealing subject line, avoid using your name or their name in the subject. Keep it simple and to the point.
1. Create a gmail account here You are required to give a second email account to recover your gmail password do not make this an account that your DS has access to or they will be able to get into your account.
Write your email.
Subject Line: Your life in Pictures
Subject Line: Your wife is a cheating fck
Then use the template. Don't include your phone number..
Do Not be emotive, just the facts. Keep it short Send.
Start using this account for everything. DO NOT tell your DS about it!