3 ms·
the '+' is valid according to RFC822 from 1982. It's not purely per service provider. http://www.faqs.org/rfcs/rfc822.html http://www.faqs.org/rfcs/rfc822.htm
by zikduruqe 3y ago
the '+' is valid according to RFC822 from 1982. It's not purely per service provider.
http://www.faqs.org/rfcs/rfc822.html http://www.faqs.org/rfcs/rfc822.html