If you'd like to change your account's email notification settings, you can follow the guide below.
In order to receive email notifications, be sure to add an email address to your OpenSea profile settings. You won't receive notifications unless you've added an email.
Be alert for scam emails that look like they come from OpenSea. Emails that don’t come from the domain “opensea.io” aren’t from us.
Changing your account notifications
From your account, click Email Notifications from the Settings dropdown in the sidebar.
You can change notification settings for:
Item sold
Bid Activity
Deals Accepted
Deal Offers
Price Change
Auction Expiration
Outbid
Owned Item Updates
Successful Purchase
Successful Mint
You can also set a Minimum Offer Threshold on offers you receive for NFTs, so you only receive email notifications for offers received exceeding a certain amount.