Users' questions

How do I whitelist an IP address in Office 365?

by Rhyley Bryan

How do I whitelist an IP address in Office 365?

IP Whitelisting

  1. Sign into Office 365 and click “Admin” > “Admin Centers” > “Exchange”
  2. Under the “Protection” list, choose “Connection Filter”
  3. Click the “Pencil Icon” to edit.
  4. Choose “Connection Filtering” on the left side menu.

How do I add a trusted IP address in Office 365?

Enable the Trusted IPs feature by using service settings

  1. In the Azure portal, search for and select Azure Active Directory, then choose Users.
  2. Select Multi-Factor Authentication.
  3. Under Multi-Factor Authentication, select service settings.
  4. Select Save.

Does Microsoft blacklist IP addresses?

Microsoft maintains their own internal blacklists, which are used to reject emails coming from specific IP addresses. Any IPs listed on the Spamhaus blacklist are also blacklisted by Microsoft.

How do I block an IP address in Office 365?

EOP / Office 365: Block or Allow IP Address in Connection…

  1. Expand the protection and click on “Connection Filter” then click on pencil sign.
  2. Now click on Connection Filtering and you will see the below screen to add the allow and block IPs .

What firewall ports do I need open to connect to Office 365?

Answer is A, B and C: Fully functionality requires outbound firewall ports TCP 443, UDP 3478, and UDP 50000 – 59999 for file transfers, audio, video, application sharing, presence updates and Microsoft Outlook integration with Office 365 Lync Online.

What URL do I use for Office 365?

Note that you must access Office 365 OWA with a supported browser because you need to use the “Full” version of Outlook Web App to configure rules. Enter the URL for the shared mailbox. The URL for a shared mailbox is https://outlook.office365.com/owa/shared_mailbox@mail.

How do I know if my Office 365 is blacklisted?

From a web browser go to the Office 365 Anti-Spam IP Delist Portal (https://sender.office.com). Step 1: Enter a valid email address to receive a verification email to complete the check, and enter the public IP address of the messaging server you want to check.

What is CIDR IP range?

CIDR is the short for Classless Inter-Domain Routing, an IP addressing scheme that replaces the older system based on classes A, B, and C. A single IP address can be used to designate many unique IP addresses with CIDR.

How do I remove my IP address from blacklist?

In a web browser, go to https://sender.office.com….To use delist portal to remove yourself from the blocked senders list

  1. Follow the instructions on the page.
  2. Click Submit.
  3. Click the confirmation link in the email sent to you by the delisting portal.
  4. In the delist portal, click Delist IP.

How do I know if my Microsoft is blacklisted?

Microsoft Exchange Blacklist – Background The only way to find out if you’re blocked is by checking your email server log files (see next section), or waiting until your users or recipients complain. Microsoft Hosted Exchange and ‘Bigfish.com’.

Does Office 365 have a firewall?

Office 365 has the benefit of built-in, high-end security. A cloud firewall like Zscaler’s allows you to optimize your network and security.

Are there IP address ranges for Office 365?

Forefront Online Protection for Exchange Online URLs and IP Address Ranges – FOPE (Wave 14) The HCW configures an on-premise receive connector called ‘Inbound from Office 365’. Notice that the EOP/FOPE IP address ranges are automatically added to this connector:

Is the EOP IP address the same as FOPE?

EOP and FOPE currently use the same IP address ranges, but don’t assume this will always be the case. Refer to the following articles for a list of IP subnets used for SMTP mail flow: Forefront Online Protection for Exchange Online URLs and IP Address Ranges – FOPE (Wave 14)

How to update Office 365 IP address and url?

Office 365 IP Address and URL web service 1 Version web method. Microsoft updates the Office 365 IP address and FQDN entries at the end of each month. 2 Endpoints web method. 3 Changes web method. 4 Example PowerShell Script. 5 Example Python Script. 6 Web Service interface versioning. 7 Update notifications.

When is Office 365 IP address and URL web service phased out?

The Office 365 IP Address and URL web service helps you better identify and differentiate Office 365 network traffic, making it easier for you to evaluate, configure, and stay up to date with changes. This REST-based web service replaces the previous XML downloadable files, which were phased out on October 2, 2018.