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You might try configuring a receive connector that has those IP addresses in it to allow them through. A receive connector would allow those addresses a more direct path to your tenant. Also make sure you put the IPs in the correct spot on your connection filter. *also* realize that the connection filter setting can take up to 24 hours to fully apply, so it may take a good while for emails to start making it through after you set it up.
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You might try configuring a receive connector that has those IP addresses in it to allow them through. A receive connector would allow those addresses a more direct path to your tenant. Also make sure you put the IPs in the correct spot on your connection filter. *also* realize that the connection filter setting can take up to 24 hours to fully apply, so it may take a good while for emails to start making it through after you set it up.

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We are not getting emails sent from the following Salesforce IP addresses, although we have added them in the whitelist list in Exchange Admin Center&gt;Protection&gt;Connecti<wbr />on Filter, as well as creating a mail flow rule to allow emails unblock from Spam in Mail Flow&gt;rule.<br />
<br />
However, we still can not receive emails from Salesforce IP addresses. Interesting, hotmail.com or gmail.com is able to receive them.<br />
<br />
These IPs are:<br />
<br />
96.43.144.64 to 96.43.144.65<br />
<br />
96.43.148.64 to 96.43.148.65<br />
<br />
204.14.234.65<br />
<br />
204.14.232.65<br />
These IP addresses are belong to Salesforce who uses it for sending emails. Please allow these emails sent from them as it s important for us to receive them. Thanks
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We are not getting emails sent from the following Salesforce IP addresses, although we have added them in the whitelist list in Exchange Admin Center>Protection>Connection Filter, as well as creating a mail flow rule to allow emails unblock from Spam in Mail Flow>rule.

However, we still can not receive emails from Salesforce IP addresses. Interesting, hotmail.com or gmail.com is able to receive them.

These IPs are:

96.43.144.64 to 96.43.144.65

96.43.148.64 to 96.43.148.65

204.14.234.65

204.14.232.65
These IP addresses are belong to Salesforce who uses it for sending emails. Please allow these emails sent from them as it s important for us to receive them. Thanks

Office 365 can not receive email from some Salesforce IPs

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.

Microsoft 365

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

Salesforce is a Platform as a Service (PaaS) for cloud-based customer resource management that includes components for case and task management, data management and a help desk system. It also includes systems for add-on applications written in Apex, a proprietary Java-like language, and systems for human resources management, employee training and performance management.