Different Methods to Whitelist Ubuy on Different Email Providers -

How to Whitelist Ubuy in Gmail?

Open Yahoo Mail or Yahoo Mobile App.
Select settings by clicking on the gear icon:
Scroll down the menu and select 'More settings':
In the left-hand menu select 'Filters':
Select 'Add new filters':
Type a name for your filter - here we chose "Whitelist Website Downtime Alerts":
Under 'Set rules', select 'From' as the rule and 'contains' as the criterion for the filter. The filter will be applied to any email that comes from an email address that contains the text you add:
Input the email address that you want to whitelist - here we input 'info@ubuy.com' to whitelist all emails that come from this address:
Under 'Choose a folder to move to' select 'Inbox'. This ensures that all emails will arrive in the inbox and never be sent to spam:
Click save:
Once the filter has been successfully created, you can view it under 'Your Filters':

Click on “Settings”, then “View all Outlook settings”
Go to “Junk email”, then choose “Safe senders and domains” or “Safe mailing lists” to select the domain or email you want to whitelist
Enter the domain name or email address you wish to add to Safe senders. Make sure to include the @ character for domain names in order to only whitelist emails with the exact string of characters you entered (and nothing more).
Alternatively, you can simply add an individual email address that has sent you a message to your Outlook Contacts. Though they lead to the same result, this method is quicker and more efficient than manually entering information.