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Re: What is the history of 2821 and implict MX?

2008-04-09 18:55:06

John C Klensin wrote:
Use of WKS was explicitly deprecated

There is a trend in RFC 1123 wrt SMTP, oversimplification.

"Simply try to use a service to see if it's there" is not
so simple when that can take about 100 hours in 2821bis.