Block spam with payment
2022-04-29 22:46:30 6 举报https://www.processon.com/view/link/626bf8d21e08535fe53f3aca Swim lane diagram
作者其他创作
大纲/内容
Mail Opened? & clicked \"Reject\")
Initial message
Attach the transaction ID to a certain field
N
Allowed sender (whitelist)
Server
Y
Done with refund
Likely done without refund
Make payment
Check email
Alice(receiver)
Received an e-mail in \"Unread Folder\"
Bob(sender)
Banned sender (Blacklist)
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