Linked in verification not coming through

LinkedIn and Microsoft verification emails commonly get blocked by spam filters or security policies before reaching Junk. To troubleshoot when nothing arrives at all:

1. Check Junk/Spam and quarantine
   • In Outlook/Exchange, verification emails often go to Junk or a quarantine mailbox.
   • For SharePoint/Microsoft secure links and Microsoft account verification, valid codes come from @accountprotection.microsoft.com. Ensure this sender is not blocked and is marked as trusted.
   • If using Microsoft Defender for Office 365, check the quarantine and any “reported items” destination mailbox that might be receiving these messages instead of the user.
2. Verify the sender and recipient configuration
   • Confirm the email address used for LinkedIn verification is correct and active.
   • Ensure the domain that sends LinkedIn verification mail is not on any block list or transport rule in the mail system or firewall.
3. Relax or adjust firewall and mail security rules
   • Review firewall, secure email gateway, and spam filter rules that might be dropping or rejecting external verification emails.
   • Allow the LinkedIn verification sender domains and IP ranges according to the mail security product’s configuration.
   • Avoid rules that silently drop messages; prefer quarantine so messages can be recovered.
4. Check for rate limiting or unusual-activity blocks
   • Excessive or repetitive requests for verification codes can trigger temporary blocks where codes are not sent at all. Wait for the cooldown period before requesting again and avoid repeated attempts.
5. Use alternate verification methods where available
   • If LinkedIn or Microsoft offers an alternate verification path (different email, phone, or “verify in a different way”), try that method from a device and network that are less restricted.
6. If still blocked
   • For Microsoft account verification issues, use the sign-in helper and, if needed, contact Microsoft Support as described in the verification-code troubleshooting article.
   • For LinkedIn-specific verification delivery problems, open a support ticket with LinkedIn, including timestamps and sample addresses, so they can confirm delivery and advise which sender/domain to allow through the firewall.

References:

• Troubleshoot Microsoft verification code issues
• Common problems with two-step verification for a work or school account
• No verification code when external recipients access shared secure links
• Verified on LinkedIn - FAQ
• Verification URL