WrapSize property
This property contains the size of string to perform the wrap operation on the body of the message.
When the email message is being sent, the Send method performs the text wrapping operation:
the long strings in the text are divided in several parts. The application will try to break the text into strings
not exceeding the WrapSize property. This property has no effect if you set the "multipart/mixed" email type.
If this value is zero, the text will not be wrapped. The default value is 72.
Example
mail.From = "myemail@email.address.com"
mail.To = "john@email.address.com"
mail.Subject = "The confirmation message"
mail.WrapSize = 64
mail.AddText longtext
mail.Send