I’m not receiving the destination email routing verification email. I do receive regular email just fine. And I’m assuming that since I am unable to verify, when I try to send mail to the routed email address, i get an error: Unverified address: linda.mx.cloudflare.net said: 451 Configuration error, Error in communication with linda.mx.cloudflare.net.
Do all three MX servers have the correct priorities?
I believe so. Said MX and TXT records are properly added to my DNS. I added the required records as pictured here.
Ok, assuming your MX records are correct, and Linda is tied for first place priority, then the message makes sense.
Have you tried a different destination address?
I just tried using another destination email and seems like I’m not getting the verification emails there either. (i did check the junk/spam folders). This is my current dns setup:
MX Records
example.com. 1 IN MX 4 amir.mx.cloudflare.net.
example.com. 1 IN MX 4 linda.mx.cloudflare.net.
example.com. 1 IN MX 82 isaac.mx.cloudflare.net.
TXT Records
_dmarc.example.com. 1 IN TXT "v=DMARC1; p=quarantine; rua=mailto:[email protected];"
example.com. 3600 IN TXT "v=spf1 include:_spf.mx.cloudflare.net ~all"
Only the MX records are involved in the new Email Forwarding feature.
If you open a ticket (support AT cloudflare DOT com) and post the ticket number here, @sven2 can probably track down the issue.
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Thank you. 
I’ll fire off a ticket @sven’s way. I really do appreciate the help!
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Update: I have been getting verification messages on other email address I’ve added to destination. Just can’t seem to receive them on my desired domain.
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[Cloudflare Support] 2335559
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I think my support ticket status is getting automatically resolved, but I think the issue might be that my Cloudflare account email which is also my destination email likely made it onto Cloudflare’s suppression list. 
[Cloudflare Support] 2335590
Please don’t open multiple tickets for the same issue. That moves your issue down the priority queue to the new ticket’s position.
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I was worried about that, but was thinking that my account email was a separate issue and included it here on my reply. Was going to wait a bit before creating another community post.
I already escalated the first ticket. We’ll see how it goes.
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Thanks @sdayman! I don’t mean to spam replies, and I really do appreciate all the assistance here!
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I see a slightly similar issue has just been resolved. Can you test yours again?
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This issue is now resolved by support. Yay! My email address somehow made it onto the suppression list. Again, thanks for all the help!
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