94% of the emails using CF Email Routing are not being delivered - their status is

General Email Routing
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94% of the emails are not being delivered. A few weeks ago there was no such issue. We haven’t made any DNS changes. Please help.

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What exactly does the Activity Log say, when you expand each “Delivery Failed” item?

  1. Sender domain (e.g. “example.com” for “[email protected]”).

  2. SPF status.

  3. DMARC status.

  4. DKIM status.

  5. Rejected reason.

With your title ending after “their status is”, it sounds like there is some missing details that would be necessary, in order to dig any further in to the problem.

Please share at least the details requested above.

2 Likes
4

I’ve uploaded 2 screenshots below:

This is the error message:

Unknown error: transient error (421): 4.7.0 [104.30.8.103 19] Gmail has detected that this message is4.7.0 suspicious due to the very low reputation of the sending domain. To4.7.0 best protect our users from spam, the message has been blocked. For4.7.0 more information, go to4.7.0 https://support.google.com/mail/answer/188131 73-20020a25024c000000b00dd174ccad9csi1347517ybc.103 - gsmtp

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Thanks in advance!

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