客戶說傳送到我的gmail會被退信, 但我還是收的到他的信

#spf

ab8071919 2023-06-01 10:27:04 ‧ 2191 瀏覽

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<我的@gmail.com>:
74.125.205.26 failed after I sent the message.
Remote host said: / Zdalny host odpowiedzial: 550-5.7.26 This mail is
unauthenticated, which poses a security risk to the
550-5.7.26 sender and Gmail users, and has been blocked. The sender must
550-5.7.26 authenticate with at least one of SPF or DKIM. For this message,
550-5.7.26 DKIM checks did not pass and SPF check for [客戶的domain.pl] did
not
550-5.7.26 pass with ip: [94.152.8.4]. The sender should visit
550-5.7.26 https://support.google.com/mail/answer/81126#authentication for
550 5.7.26 instructions on setting up authentication.
q19-20020a2e9153000000b002ac81acb225si4669050ljg.475 - gsmtp SSL (def)

--- Below this line is a copy of the message.

我想確認是是否是客戶端那邊的SPF/DKIM 沒有設定. 與我gmail無關? 感謝

看更多先前的討論...收起先前的討論...

PIZZ iT邦新手 2 級 ‧ 2023-06-01 10:42:50 檢舉

550, "5.7.26", "This message fails to pass SPF checks for an SPF record with a hard fail policy (-all). To best protect our users from spam and phishing, the message has been blocked. Please visit Prevent mail to Gmail users from being blocked or sent to spam for more information." (「這封郵件的 SPF 記錄含有硬性故障政策 (-all)，因此無法通過 SPF 檢查。為防止使用者受到垃圾郵件和網路詐騙的侵擾，系統已封鎖這封郵件。詳情請參閱「避免寄給 Gmail 使用者的郵件遭到封鎖或歸類為垃圾郵件」一文。」)

https://support.google.com/a/answer/3726730?hl=zh-Hant

看說明似乎是寄送端主機的設定

aaron3399 iT邦好手 1 級 ‧ 2023-06-01 11:36:44 檢舉

是的，就是你想的那樣

BKY iT邦好手 1 級 ‧ 2023-06-01 17:01:39 檢舉

借問這個問題問一下,在去年時我們公司寄到gmail碰到同樣被退信的問題,後來把SPF/DKIM設好了,我和同事測試寄到gmail都沒問題了,但幾天又有人說被gmail退信,訊息是一樣,怪的是我測試寄到gmail沒問題,這會是什麼原因呢？

camelchen1963 iT邦新手 5 級 ‧ 2023-06-02 09:19:31 檢舉

在 DNS record 缺正確的 TXT, 加一行 TXT 內容: "v=spf1 a:mail.你的domain ip=對外ip網段/24 ~all" 其中24 是 netmask, 也有可能是 16 ex: "v=spf1 a:mail.test.idv.tw ip=192.168.1.0/24 ~all"