On Wed, 8 Jun 2005, Gregg Berkholtz wrote: > I've begun receiving emails with quotes or slashes in the recipient's > address, and my exim daemon/config (v3.35) is accepting the addresses as > valid - to a point... My understanding was that such characters, within > email addresses, should not be treated as valid.
Wrong. See RFC 2822. Almost anything is permitted in a local part if correctly quoted. However, slashes do NOT have to be quoted. The special characters that do have to be quoted are ( ) < > [ ] : ; @ \ " and strictly, you can't have two dots in succession without quoting. Note that some recipient local parts quite legitimately contain non-alphanumeric characters. In the days of X.400 interworking, addresses such as /[EMAIL PROTECTED] were common. Consider also o'[EMAIL PROTECTED] People also use + - ? / = for special kinds of internal delimiter in their local parts. So you have to be a bit careful when thinking about this. -- Philip Hazel University of Cambridge Computing Service, [EMAIL PROTECTED] Cambridge, England. Phone: +44 1223 334714. Get the Exim 4 book: http://www.uit.co.uk/exim-book -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
