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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: mail does bounce (was: Customers down?)
"Greg A. Woods" wrote: > I know for certain that Postfix and Smail will immediately bounce a > message when the domain is authoritatively non-existant. I'd be very > surprised and dismayed if sendmail and all other true SMTP mailers did > not do exactly the same thing. Sendmail most definitely does not, instead treating the error as a transient error, issuing an SMTP error code in the 400 series, and continuing to try to send the mail for up to five days (the default), or whatever the mail server admin configured for that particular server. I think I like it better that way. Just because both nameservers are temporarily down doesn't mean the domain doesn't exist. :P -- North Shore Technologies Corporation - Steven J. Sobol, President & Head Geek 815 Superior Avenue #610, Cleveland, Ohio 44114, USA Phone +1 888.480.4NET [email protected] http://NorthShoreTechnologies.net Owned and loved by the dogs of Jaymist Chinese Shar-Pei, Montville, Ohio :) Alcohol and calculus don't mix.. Never drink and derive.
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