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Cloudron Forum

Apps | Demo | Docs | Install

Add BIMI support to Mailserver

Scheduled Pinned Locked Moved Feature Requests
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  • imc67I Offline
    imc67I Offline
    imc67 translator
    wrote on last edited by
    #1

    More and more mail clients are supporting BIMI for for digital certifying mails and show logo as proof.

    What is BIMI?
    Brand Indicators for Message Identification or BIMI (pronounced: Bih-mee) is an emerging email specification that enables the use of brand-controlled logos within supporting email clients. BIMI leverages the work an organization has put into deploying DMARC protection, by bringing brand logos to the customer’s inbox. For the brand’s logo to be displayed, the email must pass DMARC authentication checks, ensuring that the organization’s domain has not been impersonated.

    With BIMI you can:
    Display your logos on your emails.
    Control the logos that display with your email messages.
    Cultivate immediate brand recognition and enhanced user experience.

    More information:
    https://support.apple.com/en-us/HT213155
    https://developer.apple.com/support/bimi
    https://bimigroup.org

    1 Reply Last reply
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  • fbartelsF Offline
    fbartelsF Offline
    fbartels App Dev
    wrote on last edited by
    #2

    Related issue for roundcube: https://github.com/roundcube/roundcubemail/issues/8143

    1 Reply Last reply
    2
  • J Offline
    J Offline
    jayonrails translator
    wrote on last edited by
    #3

    I have never heard of this standard before or seen it somewhere out in the wild. Are there some screenshots you might be able to share so I can get a better understand what this is for?

    girishG imc67I 2 Replies Last reply
    0
  • girishG Do not disturb
    girishG Do not disturb
    girish Staff
    replied to jayonrails on last edited by
    #4

    @jayonrails there's a screenshot at https://github.com/roundcube/roundcubemail/issues/8143

    1 Reply Last reply
    2
  • imc67I Offline
    imc67I Offline
    imc67 translator
    replied to jayonrails on last edited by
    #5

    @jayonrails
    In Apple Mail on iOS :

    B8DC815D-3B7D-41E0-9A33-A4C7B5843C07.jpeg

    1 Reply Last reply
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  • philkunzP Offline
    philkunzP Offline
    philkunz
    wrote on last edited by
    #6

    Whats the status on this one? Is there more than the BIMO txt record missing?

    1 Reply Last reply
    0
  • girishG Do not disturb
    girishG Do not disturb
    girish Staff
    wrote on last edited by
    #7

    I think so. You can see instruction on how to setup the record here - https://learn.microsoft.com/en-us/dynamics365/marketing/bimi-support

    Setup a TXT record default._bimi.<domain>with value v=BIMI1; l=https://domain.com/logo.svg . SVG has to be less than 32 kilobytes.

    1 Reply Last reply
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  • humptydumptyH Offline
    humptydumptyH Offline
    humptydumpty
    wrote on last edited by humptydumpty
    #8

    Will small, family owned businesses also have access to this branding feature or does big tech have a monopoly on it?

    1 Reply Last reply
    0
  • imc67I Offline
    imc67I Offline
    imc67 translator
    wrote on last edited by
    #9

    https://bimigroup.org/implementation-guide/

    humptydumptyH 1 Reply Last reply
    0
  • humptydumptyH Offline
    humptydumptyH Offline
    humptydumpty
    replied to imc67 on last edited by
    #10

    @imc67 thanks for the link. I knew there’s a “gotcha” somewhere (step 3). No small business will be paying that much for acquiring a VMC and that’s one more obstacle tipping in the favor of big tech. It might be optional but I’m sure big tech will find way to exploit it.

    imc67I 1 Reply Last reply
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  • imc67I Offline
    imc67I Offline
    imc67 translator
    wrote on last edited by
    #11

    I just followed and implemented all the steps (except VMC).

    The BIMI audit report shows everything GREEN but also:

    Note: While your BIMI record is compliant, it doesn't include a Verified Mark Certificate that may be required by some mailbox providers.
    

    The result when sending an email from Cloudron to an iCloud email address is that BIMI is in the headers but not shown because of:

    Authentication-Results: bimi.icloud.com; bimi=skipped reason="missing evidence"
    

    When sending from Cloudron to Cloudron (other domain) there is nothing in the headers and thus not shown. I guess because the Cloudron mailserver can't handle it?

    girishG 1 Reply Last reply
    1
  • imc67I Offline
    imc67I Offline
    imc67 translator
    replied to humptydumpty on last edited by
    #12

    @humptydumpty said in Add BIMI support to Mailserver:

    paying that much

    wow indeed, its 1200 to 1400 $ a year!!

    Hope Let's Encrypt also jumps into this!

    robiR 1 Reply Last reply
    1
  • robiR Offline
    robiR Offline
    robi
    replied to imc67 on last edited by
    #13

    @imc67 said in Add BIMI support to Mailserver:

    Hope Let's Encrypt also jumps into this!

    No hopium please, make sure to bring it to their attention, since they aren't focused on that.

    Life of sky tech

    1 Reply Last reply
    1
  • girishG Do not disturb
    girishG Do not disturb
    girish Staff
    replied to imc67 on last edited by
    #14

    @imc67 said in Add BIMI support to Mailserver:

    When sending from Cloudron to Cloudron (other domain) there is nothing in the headers and thus not shown. I guess because the Cloudron mailserver can't handle it?

    Yes, there is no BIMI checks on the server side. Even if it's there not sure if it's useful since no client I am aware of supports it.

    1 Reply Last reply
    1
  • girishG Do not disturb
    girishG Do not disturb
    girish Staff
    wrote on last edited by girish
    #15

    While BIMI seems a good idea, the whole Verified Mark Certificate (VMC) is ridiculous. It seems pretty much designed for big tech 😕 Like who will pay 1500 bucks a year for this?

    For future reference, if anyone wants to shell out 1500 🙂 , the DNS has to look like this:

    default._bimi.domain.com TXT v=BIMI1; l=https://domain.com/logo.svg; a=https://domain.com/verified-mark-certificate.pem
    
    robiR 1 Reply Last reply
    2
  • robiR Offline
    robiR Offline
    robi
    replied to girish on last edited by robi
    #16

    @girish
    Not looking good: https://community.letsencrypt.org/t/verified-mark-certificates/176835/9

    Life of sky tech

    1 Reply Last reply
    2

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