Fix Yammer Post by Email Not Appearing in a Community
Question details
Users are unable to successfully post to Yammer communities via email. The emails appear to send correctly, but the posts never show up in the community feed and no confirmation emails are received.
- Product
- Yammer
- Device & OS
- not provided
- Scenario
- Publishing content to a Yammer community using the Post by Email feature.
- Observed behavior
- Sent emails are silently dropped; they do not appear in the Yammer community and do not generate any error, bounce-back, or confirmation message.
Ensure you are sending the email from the exact address associated with your Yammer profile, as unregistered or alias emails are often rejected by the system.
Use the Exact Community Email Address
Verify the formatting of the community email address to ensure it routes correctly to Yammer.
Yammer requires an exact match for the community email address. Any typos, included spaces, or incorrect domain names will cause the email to fail silently.
Open your Yammer community and look for the 'Post by email' section on the right-hand panel.
Copy the exact email address displayed. It is typically in the format communityname@yammer.com.
If the community name contains spaces, ensure they are completely omitted in the email address before sending.
Check Microsoft 365 Service Health
Identify if a broader service outage is affecting Yammer or Exchange.
Perform a Message Trace
Trace the email in Exchange to determine where it was blocked or dropped.
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Frequently Asked Questions
Why don't I receive an error when my Yammer email fails?
Yammer often drops incorrectly routed emails without generating a Non-Delivery Report (NDR) to prevent spam loops, resulting in a silent failure.
Can I post to Yammer via email using an external email account?
No, you must send the email from the exact account associated with your organization's Yammer network. External emails are automatically rejected.
Does it matter if my Yammer community has spaces in its name?
Yes. When posting by email, you must omit all spaces from the community name in the email address (e.g., 'My Community' becomes 'mycommunity@yammer.com').
