Ahh, I was dense. the X-MC headers are mailchimp
https://mailchimp.com/developer/transactional/docs/smtp-integration/
--
Kevin A. McGrail
Member, Apache Software Foundation
Chair Emeritus Apache SpamAssassin Project
https://www.linkedin.com/in/kmcgrail - 703.798.0171
On Mon, Mar 29, 2021 at 12:26 AM jdow <j...@earthlink.net> wrote:
> That is well known. Now, who is using the X-MC-xxx header set and are they
> legitimate?
>
> {^_^}
>
> On 20210328 21:20:17, Kevin A. McGrail wrote:
>
> Loren,
>
> See https://tools.ietf.org/html/rfc6648 but basically for email think of
> X- as local headers, 100% allowed, do whatever you want with them, no one
> should pay any attention unless you publish what they mean. Lots of places,
> my firm included, add X-* headers for various purposes.
>
> Regards,
> KAM
> --
> Kevin A. McGrail
> Member, Apache Software Foundation
> Chair Emeritus Apache SpamAssassin Project
> https://www.linkedin.com/in/kmcgrail - 703.798.0171
>
>
> On Sun, Mar 28, 2021 at 11:08 PM Loren Wilton <lwil...@earthlink.net>
> wrote:
>
>> I've started seeing a number of spams with the following block of X
>> headers
>> in it. I've never seen these before. While these look really fake to me
>> (from the content of most of them), does any real tool or site make
>> headers
>> like this, or are they just from some spam tool and I can use them as a
>> guarantee of spam?
>>
>> x-mcpf-jobid: mc.us6_13712451.1216993.5a2d921a72084.full_000003
>> X-MC-User: 6b669534c4be2b401d8744486
>> X-MC-Tags:45829
>> X-MC-Track:456
>> X-MC-Autotext:global
>> X-MC-AutoHtml: format
>> X-MC-Template: smiley
>> X-MC-MergeVars: {"_rcpt": "emailadr...@domain.com", "fname": "John",
>> "lname":"Smith"}
>> X-MC-GM-Analytics: normal
>> X-MC-GoogleAnalyticsCampaign: good
>> X-MC-Metadata: { "user_id": "45829", "location_id": "111" }
>> X-MC-URLStripQS: link to <AsianBeauties Team>
>> X-MC-PreserveRecipients: 123
>> X-MC-InlineCSS: used
>> X-MC-Subaccount: sendgrid
>> X-MC-ViewContentLink: {uurl}
>> X-MC-BccAddress: {ourl}
>> X-MC-Important: notes
>> X-MC-IpPool: 99%
>> X-MC-ReturnPathDomain: server1.tech
>> X-MC-SendAt: "AsianBeauties Team"
>> X-MC-MergeLanguage: {all language}
>> X-MC-MergeVars: {"var1": "global value 1"}
>> X-MC-MergeVars: {"_rcpt": "emailadr...@domain.com", "fname": "John",
>> "lname":"Smith"}
>> X-MC-GoogleAnalytics: www.domain.com, domain.
>> X-MC-Metadata: { "user_id": "45829", "location_id": "111" }
>> X-MC-Metadata: { "group_id": "users_active" }
>> X-MC-Metadata: { "_rcpt": "f...@example.com", "user_id": "123" }
>> X-MC-Metadata: { "_rcpt": "b...@example.com", "user_id": "456" }
>> x-mcda: TRUE
>>
>>
>>
>
