v1.6.0

• Add a new rule requireAscii() that considers an email address containing non-ASCII characters to be invalid. (Thanks @frodeto for suggesting!)
• Add new property isAscii() on Email objects that returns if the email address only contains ASCII characters or not.
• Add option to strip quotes within the local-part of an email address when normalizing the address with the normalize() method. (Thanks @tdelaney-leadiro for suggesting!)
  • This new option will remove quotes if the email address would still be valid and semantically the same without them.
  • To enable the option, either:
    • Call the normalize method that takes a boolean as the parameter, and use true. Example: email.normalize(true)
    • Set the -Djmail.normalize.strip.quotes=true JVM property at runtime, and continue to use the normalize() method without parameters.