正常发送的邮件被退回，退回原因： 554 Reject by behaviour spam at Rcpt State(Connection IP address:x.x.x.x)ANTISPAM_BAT[01201311R506a, ay29a033002195083]: spf check failed CONTINUE (in reply to RCPT TO command)问题原因通过错误提示可以得···
阅读详细 >以下是客户遇到的常见的退信截图，退信提示：Your message couldn't be delivered. The Domain Name System(DNS) reported that the recipient's domain does not exist.Delivery has failed to these recipients or groups:******(*******@*********···
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