We have run in to exception errors because of excessively long length of a task title/name. To help reduce this issue with email monitor generated tickets, we inserted some workflow to make sure that the subject of the email is only 100 characters or less.
1. In the SD.Email.Monitor - ProcessMessage Model
This is what the final should look like (or close to.)
2. After the "Text Exists in Subject" component (near the beginning of the model), map the "exists" result to a new LogicBase.Components.Default.Process.TextLength component. I named this "Get subject Length"
3. Attach the result to a new LogicBase.Components.Default.Rules.CompareNumbersRule component. I named this to "Subject over 100 characters?"
4. Map the result of "Greater than" to a new LogicBase.Components.Default.Process.ExtractTextFromText component. I named this one to "Shorten Subject to 100 Characters"