Address not found.
550 5.1.1 : Recipient address rejected: User unknown in virtual mailbox table
表示客户不接收未保存联系人(陌生人)的邮件. 并非你要发送的邮箱地址失效.
发送邮件错误代码550 5.1.1
Address not found.
550 5.1.1 : Recipient address rejected: User unknown in virtual mailbox table
表示客户不接收未保存联系人(陌生人)的邮件. 并非你要发送的邮箱地址失效.
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