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Date:      Sun, 28 Feb 2021 15:01:34 -0600
From:      Tim Daneliuk <tundra@tundraware.com>
To:        FreeBSD Mailing List <freebsd-questions@freebsd.org>
Subject:   Re: Somewhat OT: Mail Relay Services
Message-ID:  <f3274507-5b85-e8f0-2a4d-aa7328209f1c@tundraware.com>
In-Reply-To: <000001d70dff$23f1cdf0$6bd569d0$@gsicomp.on.ca>
References:  <877d08ef-d533-69f6-4c44-f2cbbe39ba31@tundraware.com> <000001d70dff$23f1cdf0$6bd569d0$@gsicomp.on.ca>

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On 2/28/21 12:25 PM, matt@gsicomp.on.ca wrote:
> Like anything to do with email, it's not entirely as simple as it sounds.
> DuoCircle requires per-domain setup via their UI ("permitted senders"), plus
> you need to set up SPF and DKIM keys for each domain.
> This was a hard slog for 100+ domains but has been entirely worth the
> initial effort and ongoing cost to avoid mail delivery complaints from
> customers that are entirely beyond my control.

Thanks Matt (and everynone else who had suggestions) -

This seems to work just fine, as evidenced by the headers in this
very email.




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