Hard Bounce
The email was returned because it was sent to an invalid email address and the server could not find a destination to send it to. Common reasons include typographical errors (e.g. .com instead of .con), or the recipient's inbox being deleted (e.g. leaving a job).
Soft Bounce
Although the email was sent to a valid address, it could not be sent due to some temporary rea... https://jiangsumobilephonenumberlist.com/
Jiangsu Mobile Phone Number List
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