: Using "spammy" keywords (e.g., "FREE," "Act Now," excessive dollar signs) or too many attachments.

First, determine if your IP is on a global blacklist. Tools like MXToolbox or Barracuda Central allow you to enter your domain or IP to see if you have been flagged for spam-like behavior. Common Reasons for Being Blocked:

If you find your IP on a blacklist, you must follow the specific "Delisting" process for that provider.

: Go to Settings (gear icon) > View all Outlook settings > Junk email . Under Blocked senders and domains , find the email and click the Delete/Trash icon to remove it from the list.

If you're referring to a physical block of paper related to email, could you provide more context or clarify what you mean?

: Go to Settings > More Settings > Security and Privacy . Locate the Blocked Addresses section and remove the desired contact from the list.

: Failing to set up SPF, DKIM, and DMARC records, which verify to the receiving server that you are a legitimate sender. 3. How to Request an IP Unblock

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