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From: Stacey Marshall <stacey.marshall@gmail.com>
Newsgroups: comp.mail.sendmail
Subject: Re: Question: should submit.mc include nocanonify by default?
Date: Wed, 14 May 2025 17:54:18 +0100
Organization: A noiseless patient Spider
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On 13/05/2025 20:28, Marco Moock wrote:
> On 12.05.2025 18:10 Uhr Stacey Marshall wrote:
>
>> Thus I was wondering if submit.mc should include the nocanonify
>> feature by default?
> 
> I do not see a reason for that as most machines have access to DNS. A
> default setting is something that fits general situations and not
> corner cases.
> 
> Most servers also check the recipient domains and reject stuff that
> isn't an FQDN or unresolvable, so the default checks are sane.
> 

Thanks Marco for you response.  I should perhaps of added that in
the site's scenario the mail was then stuck in the submit queue
and not forwarded to the MTA (sendmail.cf queue) which would have 
forwarded to the relay.

While I commonly see suggestions to make a change to sendmail.mc this is 
the first time I've had to suggest a site change submit.mc.  But I am a 
relatively new to sendmail configuration myself, so perhaps it is just 
my lack of experience.

Does that extra information make any difference?

Thanks again,

Stace