Javadoc regarding default setting for email validation contradicting code, but what it should be

[bbottema]

(copy of: bbottema/simple-java-mail#31).

bbottema/simple-java-mail@8370db1#commitcomment-16375443

The following javadoc and code show what the default email validation strictness is set to:

    /**
     * The default setting is not strictly 2822 compliant. For example, it does not include the {@link #ALLOW_DOMAIN_LITERALS} criteria, which results in
     * exclusions on single domains.
     * <p>
     * Included in the defaults are: <ul> <li>{@link #ALLOW_QUOTED_IDENTIFIERS}</li> <li>{@link #ALLOW_PARENS_IN_LOCALPART}</li> </ul>
     */
    public static final EnumSet<EmailAddressCriteria> DEFAULT = of(ALLOW_DOMAIN_LITERALS);

However, I'm not sure what actually should be the default. Do we even need a default? What is its purpose?

Initially I thought a more strict-than-RFC-compliant default would be needed to make sure main stream services and servers can handle the more mundane email strings, rather than the exotic strings the RFC would allow.

What should be the default?

[bbottema]

Resolved under bbottema/simple-java-mail#31.