問：我們可以發郵箱到香港那邊，對方收的到，但是回復的我們就收不到，我問香港那邊，他們說我們的郵箱拒收了他們的郵件，請解決，謝謝。
答：您好，請提供對方的退信截圖，
發件人，收件人地址等信息，以便核實。謝謝！
問：
香港發件人：queenie@ambrosechancpa.com.hk
我司收件人：jonas.chang@apaccold.com
以下為退件信息：
This is the mail system at host sm9.hostedexchange.asia.I'm sorry to have to inform you that your message could notbe delivered to one or more recipients. It's attached below.For further assistance, please send mail to postmaster.If you do so, please include this problem report. You candelete your own text from the attached returned message. The mail system<dickson.ho@apaccold.com>: host mx1.yunyou.top[127.0.0.1] said: 5545.7.1 <dickson.ho@apaccold.com>: Recipient address rejected: The sender SPF validation fails. [ 702 ], see https://www.yunyou.top/help/detail?id=53(in reply to RCPT TO command)<jonas.chang@apaccold.com>: host mx1.yunyou.top[127.0.0.1] said: 5545.7.1 <jonas.chang@apaccold.com>: Recipient address rejected: The sender SPF validation fails. [ 702 ], see https://www.yunyou.top/help/detail?id=53(in reply to RCPT TO command)<scott.fan@apaccold.com>: host mx1.yunyou.top[127.0.0.1] said: 554 5.7.1 <scott.fan@apaccold.com>: Recipient address rejected: The sender SPF validation fails. [ 702 ], see https://www.yunyou.top/help/detail?id=53(in reply to RCPT TO command)<stella.su@apaccold.com>: host mx1.yunyou.top[127.0.0.1] said: 554 5.7.1 <stella.su@apaccold.com>: Recipient address rejected: The sender SPF validation fails. [ 702 ], see https://www.yunyou.top/help/detail?id=53(in reply to RCPT TO command)
答：您好，
SPF驗證失敗
解決辦法：
1）聯系對方郵局管理員將所有發信IP添加到SPF解析中（推薦）。
2）登錄郵局管理員postmaster，進入郵局管理，在郵箱管理–反垃圾設置里面關閉SPF發信驗證。關閉SPF驗證后不會再驗證SPF，會導致有大量垃圾郵件及偽造域名的郵件進來。