Before moving on with the solutions to get Gmail through Hotmail, check if the emails from Gmail are not routed to your Junk folder of Hotmail. If so, then select the email and click on Not Junk to check if that resolves the Gmail issue.
1. Unblock the Email Address and Gmail in the Hotmail Settings
You may fail to receive emails from Gmail if you have intentionally or unintentionally blocked the email address or the whole Gmail.com domain in the Hotmail settings (some users reported that blocking a single Gmail address, caused the whole Gmail.com domain to be blocked). In this context, unblocking the email addresses (or the Gmail.com domain) in the Hotmail settings may solve the problem.
2. Add the Email Address and Gmail to the Safe Senders and Domains
If unblocking the Email address did not do the trick, then the email address (or the Gmail.com domain) is triggering the Hotmail’s internal security mechanism, and adding the email address (or the Gmail.com domain) in the Safe Senders and Domains list may solve the problem.
3. Delete the Unnecessary Files/Folders from the OneDrive
You may encounter the Gmail issue if the OneDrive storage is nearly full. In this context, deleting the unnecessary files (or purchasing the additional storage space) may give you the required space and thus solve the problem.
4. Edit Hotmail Rules
You may not receive emails from Gmail in the Hotmail if a Hotmail rule is affecting the Hotmail-Gmail communication. In this context, editing the Hotmail rules may solve the problem.
5. Enable ‘Let Devices and Apps Use POP’ in the Hotmail Settings
You may encounter the Gmail issue at hand if the POP settings are not properly configured in Hotmail. In this case, enabling the POP for devices and apps may solve the problem. If the issue persists, then you may send the mail to the problematic Gmail address and then ask the user to use the Reply feature to communicate with you (till the permanent resolution of the Gmail issue is reported).
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