userb emails usera - usera does not have userb on their whitelist.
Userb's email is not delivered, instead userb gets a mail asking if they wish to appear on usera's list? if yes usera gets asked same thing if yes all old/new mails get delivered
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GNU General Public License version 2.0 (GPLv2)Follow ProAntiSpam
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Stop Storing Third-Party Tokens in Your Database
Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
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