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IkeTheGeek's avatar
IkeTheGeek
Copper Contributor
Aug 01, 2023

Some outlook email accounts fail dkim but not others - NOT 365

Greetings: Issue Outlook 2021 Desktop (and others)  One email account sending tests to mailgenius, or ANY other mail testing site yields dkim failure, dmarc failure.   Using the same outlook, on a...
abby195's avatar
abby195
Copper Contributor
Apr 10, 2024

IkeTheGeek 

 

4/10/24

Hi Beau,

 

Thanks a lot for the time you shared with me today on our remote session, please find the below summary for our case:

  • MS support collected three samples for the quarantined emails from https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fMSN.com&c=E,1,26Z38nDaJbluOGexCOeY3xawxZmEwp9lerUGgtZai3xCzGJaDfSci2yqpGc1pT5DCP81tGu1x1aowE4r__30PYmYxjRD_KyRhXCTZZL8ofU,&typo=1&ancr_add=1 for analysis
  • I Analyzed the message header for few samples ( attached) and found the below :

 

                 https://linkprotect.cudasvc.com/url?a=https%3a%2f%2ftools.ietf.org%2fhtml%2frfc8601&c=E,1,8MKA9Gd52D-0c6QJu9iJDphPg7COxCCjjV5GgYtKvt_XJtVXu_mKxjZlv0nLvpqzov2YF5GAnqYoI1JTwHFSbc-6dz_B5duu2BxQS0h7Gdi3tW9P6g,,&typo=1

                 mx-inbound9-12.us-east-2a.ess.xxx.com; spf=pass (sender IP is 40.92.23.95) mailto:smtp.mailfrom=email address removed for privacy reasons; dkim=fail (No key [DKIM DNS record not found]) header.d=msn.com; dmarc=none action= mailto:header.from=email address removed for privacy reasons

  

                 https://linkprotect.cudasvc.com/url?a=https%3a%2f%2ftools.ietf.org%2fhtml%2frfc6376&c=E,1,ylpkv0fIKXetSvejwdnPL8o4nsRSxSazz9QPjS550I67H5C5gyrHOx217QlJErtRohN99cDDuGruzuRCjaUog4WEMXiGUfo2VeXulihRULA2lydMItlzA5PVKA,,&typo=1

                  v=1; a=rsa-sha256; c=relaxed/relaxed; d=msn.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Yz+xBG0EUYcMykZq9MM6krZkbxy35i9hCfQSgRZEtD4=;      

 b=Un8Sr/YNzNmZfFpqg2AHCkpKzN3O+WFQur+/bQb8evpmCUVS4j34WRUWZTbbVIGe68Xy/QOEVPifvpJvG8qgUa/SDrXl/BUCFMfTbwV5sHEYLVcF1TBEZ6B5S5y+IWOYCoQr+k7wAYi7PXTKGVhTVnknbO3Mon+CBSlyD4spIBvoWbyxd6Nhg6VfVvRpNQPWlz+coD/lq5/3Dq2AwTghG/3PmjClXJFft6j1e/0Tq/zQNHr2Rr2b+Qc11KSZ93nyl+05fimowFFPe5IET8976IIJKe2STUuxIPB9QBUYWa8F4U2NPL2Rc6LCnVLPB1I5v4SRMPlzybxInhsQqRYm0A==

 

  • Checked the DKIM record for MSN on https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fdmarcian.com%2fdkim-inspector%2f&c=E,1,3xtvWZyhXVzJpNypB1GsBRYa10J00sQGfYpZJPOyPaYb6AbF9zjt_ZwE_xZzDTR63IRh-70Dc-ZA5gJeUrQjQ3TWmMgVHWMq4At9Px8AYTFaaSg,&typo=1 and found it is missing    (Query: selector1._domainkey.msn.com).
  • I Escalated the issue to PG team with high severity
  • We agreed to change the Sev to B.

 

Thanks and best regards.