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I am having issue that Yahoo emails are not reaching recipients. I am getting an error message but after 24hrs not even straight after. It's only come to my attention because in follow up calls, they are telling me that the emails never arrived..
Please advise me how to sort it out as is very important I can reach those yahoo recipients.
Your message couldn't be delivered. Despite repeated attempts to contact the recipient's email system it didn't respond.
Contact the recipient by some other means (by phone, for example) and ask them to tell their email admin that it appears that their email system isn't accepting connection requests from your email system. Give them the error details shown below. It's likely that the recipient's email admin is the only one who can fix this problem.
For more information and tips to fix this issue see this article: https://go.microsoft.com/fwlink/?LinkId=389361.
Using classic Outlook for Windows in business environments
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
We contacted our IT guy to look into it and he fixed it. I'm no Geek but this is what he said:
“Rotate the DKIM keys”. He explained it like getting in the TSA Precheck line at the airport without having applied for it, you have a ticket to get on the plane you’re just in the wrong line.
Hope this helps!
I am also hosted by GoDaddy (microsoft365 user). I called about 2 weeks ago and explained my issue and they said it was a known issue but there was not known resolution at this time. This is super frustrating to have to shift to my personal goal account to reply to customers and ask them for another email address to communicate with me bc Outlook is not playing nice with Yahoo.
I'd be interested in assistance from the Microsoft Team on ways to resolve this.
My organization started having this problem late Thursday evening 3/8/24 with emails outbound to Yahoo not getting delivered. After googling the issue I found this forum and the posting by Mitch Cohen regarding this article https://www.braze.com/resources/articles/yahoo-and-gmails-2024-new-sending-requirements This article helped me understand it wasn't a Yahoo issue, it was our SPF, DKIM, and DMARC settings were not configured for our custom domain in MS Office 365. Using the following 3 articles by Microsoft I was able to follow and configure the required settings both in my Microsoft tenant and on my Wix domain account.
Step 1; Verify your MS Tenant has SPF configured. Mine had SPF already in place for my custom domain. https://learn.microsoft.com/en-us/microsoft-365/security/office-365-security/email-authentication-spf-configure?view=o365-worldwide&viewFallbackFrom=o365-worldwide%3FWT.mc_id%3D365AdminCSH_globalsearch
Step 2: Setup DKIM for your MS Custom domain account https://learn.microsoft.com/en-us/microsoft-365/security/office-365-security/email-authentication-dkim-configure?view=o365-worldwide
Step 3: Setup a Shared Mailbox in my MS tenant, for the DMARC process to allow us to receive email performance information. https://learn.microsoft.com/en-us/microsoft-365/admin/email/create-a-shared-mailbox?view=o365-worldwide
Step 4: Setup DMARC for my MS Custom Domain using the shared mailbox I created in step 3 https://learn.microsoft.com/en-us/microsoft-365/security/office-365-security/email-authentication-dmarc-configure?view=o365-worldwide
As I performed steps 1,2, and 4 I tested the header messages of my sent emails to both Gmail and Yahoo mailboxes that I had access. I used the site linked in the DKIM setup article to view my headers. https://mha.azurewebsites.net/
Overall investigating / reading and understanding the issue took about 2.5 hours much longer than the actual resolution. It took about 1.5 hours following the articles above and testing the settings to resolve the issue for us.
I hope you all find this post useful. I didn't go through all 7 pages of post here. Luckily the post by Mitch Cohen was on page 1 and it pointed me in the right direction. I checked the last page and Ron6576's post with the link https://easydmarc.com/tools/dmarc-lookup helped me confirm the issue. The EasyDMARC site is an easy tool to use but keep in mind they are selling a service to manage your DMARC process.
Cheers,
We are having the same issue. It seems to be expanded to email accounts hosted on Yahoo servers. I have verified that the old AT&T email domains @swbell.net and @sbcglobal.net also return undeliverable messages. I have reported the issue to Yahoo, but they are saying it's Microsoft's issue. Has anyone else been told similar?
Our law firm having same issue. Very frustrating - none of our yahoo clients are receiving emails.