If registration or notification emails from noreply@cicloudpro.com are delivered to the junk or spam folder, this is usually not caused by a local Outlook rule. In most cases, Microsoft has temporarily reduced trust in the sender because previous recipients marked these messages as junk.
Why this happens
- The sender address noreply@cicloudpro.com is filtered by Microsoft 365 spam protection.
- Microsoft may classify the emails as junk based on historical user feedback.
Recommended solution
The most reliable solution is to allow the sender at the Microsoft 365 organization level. This ensures emails are delivered to the inbox for all users, regardless of individual mailbox settings.
How to allow noreply@cicloudpro.com in Microsoft 365
Step 1 – Sign in to the Microsoft 365 Admin Center
- Go to https://admin.microsoft.com
- Sign in using a Microsoft 365 administrator account
Step 2 – Open Exchange mail flow settings
- Navigate to Admin centers → Exchange
- Open Mail flow
Step 3 – Add the sender IP addresses to the allow list
- Go to Threat management → Policy → Anti-spam
- Edit the inbound anti-spam policy (Default or Custom)
- Under Allowed and blocked senders and domains, locate IP allow list
- Add the following IP addresses:
- IPv4:
83.149.93.212 - IPv6:
2001:1af8:4900:a031:2:0:4b15:A1
Save the policy. After this change, emails from noreply@cicloudpro.com will bypass spam filtering and be delivered to users’ inboxes.
Optional additional step for individual users
If a user already sees the email in their Junk Email folder, opening the message and selecting “Not Junk” in Outlook helps reinforce sender trust at the mailbox level.
Ongoing monitoring
Email reputation and delivery are continuously evaluated by :contentReference[oaicite:1]{index=1}. If delivery issues reoccur, confirming that the IP allow list is still in place is usually sufficient to restore reliable inbox delivery.
If problems persist after applying the allow list, please contact your IT administrator or support.