Hi, Michael,
Thanks for the heads up, we'll take a look at the points you've brought up.

I'll pm you w/ anything further.

Thanks
John

On Mon, Apr 30, 2018 at 2:02 PM, Michael Peddemors <[email protected]>
wrote:

> For the record, and a reminder to others..
>
> RFC says that the 'Return-Path', eg EnvelopeFrom should ONLY be added at
> the final destination..
>
> Emails are being sent with existing Return-Path headers.. meaning they are
> added incorrectly for the mailing lists.
>
> It should be pointed out that a very high number of Invalid Email accounts
> were triggered, so you might want to work with the client to ensure that
> they are using confirmed double opt-in methods for collecting sign-ups, and
> helps stop 'fake sign-up' mailbox DOS attacks..
>
> X-Mailer: XyzMailer
> X-Xyz-cr: 986
> X-Xyz-cn: 7817
> X-Xyz-bcn: 7751
> X-Xyz-md: 100
> X-Xyz-mg: 32694182
> X-Xyz-et: 111
> X-Xyz-pk: 11086764
> X-Xyz-ct: 837196
> X-Xyz-bct: 813973
> X-PVIQ: 000273-000603-000986-007817-000000
> X-CM-MessageId: 986-7817
>
> Kind of a lot of headers, are they all needed? Maybe look at formatting
> those into a single header, base64 encoded with the information you need?
>
> Also, (personal pet peeve)..
>
> EnvelopeFrom: <[email protected]>
> From: "Allegiant" <[email protected]>
>
> End users understand 'whitelisting' the company that they expect email
> from, eg @allegiant.com
>
> Make it easier for non-techies..
>
> Also, when ever sending for a company, encourage them to use SPF records
> for their main domain, it helps prevent fake alerts, eg from affiliates,
> spammers, or even worse, phishing attacks..
>
> (Note, they do have it for e.allegiant.com, but not for allegiant.com)
>
> Especially for companies that do transactional email, eg confirmation of
> ticket purchases, they don't need fake @allegiant.com emails telling them
> to look at the attached.. well, you get the drift..
>
> BTW, if anyone knows where their transactional email is sent from, let us
> know..
>
>
>
>
> --
> "Catch the Magic of Linux..."
> ------------------------------------------------------------------------
> Michael Peddemors, President/CEO LinuxMagic Inc.
> Visit us at http://www.linuxmagic.com @linuxmagic
> A Wizard IT Company - For More Info http://www.wizard.ca
> "LinuxMagic" a Registered TradeMark of Wizard Tower TechnoServices Ltd.
> ------------------------------------------------------------------------
> 604-682-0300 Beautiful British Columbia, Canada
>
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