Gets the compliance mode that should be used when parsing rfc822 addresses.
Note: Even in #GMIME_RFC_COMPLIANCE_STRICT mode, the address parser is fairly liberal in
what it accepts. Setting it to #GMIME_RFC_COMPLIANCE_LOOSE just makes it try harder to
deal with garbage input.
Gets the compliance mode that should be used when parsing rfc822 addresses.
Note: Even in #GMIME_RFC_COMPLIANCE_STRICT mode, the address parser is fairly liberal in what it accepts. Setting it to #GMIME_RFC_COMPLIANCE_LOOSE just makes it try harder to deal with garbage input.