https://bugs.exim.org/show_bug.cgi?id=2669
--- Comment #12 from Jeremy Harris <[email protected]> --- UTF-8 is acceptable, even required, in domain lists, because an original UTF-8 domain from an SMTP transaction is maintained in that form. I'm not sure about hostnames though; anything we get from DNS should be A-label form, and hostlists used for checking received connections would be comparing against that. Hostlists used by routers/transports for destinations could, I think, potentially use U-label form. It'd be interesting to hunt for any standards defining disallowed UTF-8 chars in DNS. Nbsp sounds like one, but who knows? And does it vary for different RR types? -- You are receiving this mail because: You are on the CC list for the bug. -- ## List details at https://lists.exim.org/mailman/listinfo/exim-dev Exim details at http://www.exim.org/ ##
