alb (02/24/83)
Plenty of people run csh but do not have backslashes in their addresses. I know of the ! interpretation of csh and that \ is/are used to nullify it, but the \'s never came through before. e.g. If I mail to site\!user (using csh), the address will be passes along to mail as site!user (note the \ removed) csh does not pass the \ along, but merely reads it internally.