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yahoo635's avatar
yahoo635
Copper Contributor
May 18, 2022

messg spam from my office email to yahoo

when i send a mesg from my office to yahoo , the message enter to inbox folder , then after 1min  or 2min , the message fall to junk folder , can someone help me with this , or explain to me what goi...
office 365
Amber's avatar
Amber
Copper Contributor
May 26, 2022

We are having this issue as well with one of our O365 tenants that send email to end users, many of the recipients have yahoo.com accounts.  In testing, i created a brand new yahoo.com email account and sent email to it from 3 different Microsoft O365 tenants, all 3 emails went directly to spam folder.  Then i sent mail to this brand new account from an aol address and gmail an they went to the inbox.  This tells me Yahoo is definitely filtering Microsoft mail directly to spam since this was a brand new yahoo.com email account.  When i run the headers for the email i sent from Microsoft accounts through mxtoolbox header analyzer, all checks are perfect, spf, dmarc, dkim pass so i know there is nothing wrong with the configuratin.  Does yahoo have any checks to run the headers through so you know why they are labeling the mail as spam?  So are people opening tickets with Microsoft because you think their sending IP's are on blacklists? Curious as to why more people are not opening tickets with Yahoo... Since these are free accounts, will Yahoo even do anything? I couldnt find where to open a ticket with Yahoo... 

  • nstclairz's avatar
    nstclairz
    Brass Contributor
    May 26, 2022
    That's the problem with AOL/Yahoo- there is no free support, you need to sign up for a subscription for any sort of support. A poster on here did that and got nowhere (yet) unfortunately.

    Some of us have tried submitting tickets here: https://senders.yahooinc.com/contact/
    • Amber's avatar
      Amber
      Copper Contributor
      May 26, 2022
      i just got this response from Yahoo.

      Thank you for contacting Yahoo Postmaster.

      I understand that your emails are incorrectly delivered to the customer's spam folder. I know how inconvenient it is to you. I'm happy to help.
      I've reviewed your case and recently you may have noticed an increase in mail going to the spam folder for senders using Office 365 and other Microsoft products. We are in the process of addressing this issue and expect it to improve over the next several days. Please have your recipients mark the mail in the spam folder as “not spam” or “ham” and that will help to correct the issue. Thanks for your patience.
      I hope you find this information useful. Do not hesitate to reach out to us if you have any other questions!

      Regards,

      Christine
      Yahoo Postmaster
    • Amber's avatar
      Amber
      Copper Contributor
      May 26, 2022

      Thanks, i just tried to put in a support ticket using the link you provided but it seemed to go to a black hole, i didn't get an auto response. One thing I noticed from running my headers through mxtoolbox header analyzer, it passed all dkim, dmarc, spf checks however it did show the sending server has an ipv6 IP showing therefore listing it on a blacklist called CYMRU BOGONS IPv6. Has anyone else seen this if you run the headers through mxtoolbox? It looks like all 3 of the tests i sent from 3 different Microsoft O365 tenants show this blacklist when running the headers through through mxtoolboxes header analyzer.

      • syntekinn's avatar
        syntekinn
        Copper Contributor
        May 26, 2022
        I am seeing the same thing on my test emails with the same blocklist. I've forwarded the headers to my open ticket with Microsoft, we'll see if anything comes of it.

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