Re: Exim not accepting undescore in server name?
R. W. Rodolico wrote:
Has anyone had this issue? I have a server named da_vinci.sculptcad.com,
and when I try to send an e-mail to root@da_vinci.sculptcad.com, it fails.
It appears to break at the underscore and returns fails with the error
message:
RFC 952
1. A "name" (Net, Host, Gateway, or Domain name) is a text string up
to 24 characters drawn from the alphabet (A-Z), digits (0-9), minus
sign (-), and period (.). Note that periods are only allowed when
they serve to delimit components of "domain style names".
RFC 1123
The syntax of a legal Internet host name was specified in RFC-952.
One aspect of host name syntax is hereby changed: the restriction on
the first character is relaxed to allow either a letter or a digit.
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