Changes between Version 6 and Version 7 of dmarc-and-mailing-lists


Ignore:
Timestamp:
Feb 26, 2018, 5:13:45 PM (19 months ago)
Author:
Jamie McClelland
Comment:

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  • dmarc-and-mailing-lists

    v6 v7  
    22= DMARC and Mailing Lists =
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    4 In early April, Yahoo changed their email policies (and called this change an ''aggressive level of [http://www.dmarc.org/ DMARC]'') in an effort to stop spam and phishing against it's users. This policy change requires Yahoo users to change the way they use their email services and has caused widespread problems with users throughout the Internet, including May First/People Link Members.
     4In early April 2014, Yahoo changed their email policies (and called this change an ''aggressive level of [http://www.dmarc.org/ DMARC]'') in an effort to stop spam and phishing against it's users. This policy change requires Yahoo users to change the way they use their email services and has caused widespread problems with users throughout the Internet, including May First/People Link Members.
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    6 As a side effect, they are pressuring their users (and users of other email providers) to avoid using third party email list services, promoting greater concentration of services.
     6Essentially, via this policy change, Yahoo is telling the world: Don't accept any email message from an address that ends in yahoo.com unless it was directly sent by our servers.
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    8 If counter measures are not taken, messages sent from Yahoo email addresses to our email lists will bounce when delivered to other Yahoo users and to many users of other providers, including but not limited to Gmail and Comcast accounts. Once enough bounces are recorded, subscribers from the those accounts will be removed from your lists.
     8Unfortunately, that includes email messages sent by our email servers.
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    10 What should you do if you use a Yahoo email address?
     10May First/People Link has mitigated this problem by changing the way our email list servers works.
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    12  * If you are a May First/People Link member, please open a support ticket to ask for help in setting up a May First/People Link email address (https://support.mayfirst.org/newticket) in case you are not using one already.
    13  * If not, change your email provider, to one that does not enforces ''aggressive levels of DMARC'', or even better, join May First/People Link as member.
    14  * Either way: stop using Yahoo to send messages to your email lists.
    15  * If you manage an email list configured for discussion, please email your list warning them about this problem and asking that subscribers with Yahoo addresses stop sending messages to the list.
     12If an email message is received from an email address that uses this aggressive DMARC setting, then the from address will be changed so it appears to be coming from the email list, rather than from the original sender.
    1613
    17 To help mitigate this problem, May First/People Link is modifying messages sent to our email list servers from Yahoo email addresses - we are re-writing the From address to be from a mayfirst.org email account rather than the original yahoo address. As a result, you may see messages posted to your email list with a From address like:
     14In addition, if any email messages still manage to slip through (perhaps they were sent via a CiviCRM install or any other program using bulk.mayfirst.org), May First/People Link is modifying messages sent to our email list servers from Yahoo email addresses - we are re-writing the From address to be from a mayfirst.org email account rather than the original yahoo address. As a result, you may see messages posted to your email list with a From address like:
    1815
    1916{{{
     
    2118}}}
    2219
    23 If you reply to this email message, the reply will go to: `strict-dmarc@mayfirst.org` and the user will get an auto-response referring them to this page.
     20If you reply to this email message, the reply will go to: `strict-dmarc@mayfirst.org` and the message will bounce.
    2421
    2522== Technical Details ==