https://support.gravatar.com/managing-account-settings/multiple-emails/
Secondary emails – Gravatar Support
A lot of people have multiple email addresses and like to use different ones on different services. To make this easier to manage on Gravatar you can add...
secondary emailsgravatar support
https://www.notion.com/help/secondary-emails
Secondary emails – Notion Help Center
Add multiple email addresses to a single Notion account. 📨
secondary emailshelp centernotion
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