In any type of law but especially family law, emails, texts and Facebooks posts and messages get attached to Affidavits as evidence of things said and the tone between two parties. Remember before you hit send to review what you said and how you said it to ensure you would be comfortable with the court reading it.
There are programs like Our Family Wizard that not only keep great logs of communications, but for an extra fee can monitor the tone of your messages to make you aware of some phrases or words that can increase conflict. There are also high conflict communication experts who can be hired to reword and rewrite emails to ensure no inflammatory language is included and therefore allowing the parties to deal with the issues about their children and not the language used.
If you ever have a question as to whether or not an email should be sent, err on the side of caution and consult your lawyer.
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