Yes it does, but you do need a Domain Lockdown record. https://community.cloudflare.com/t/introducin

Yes it does, but you do need a Domain Lockdown record. https://community.cloudflare.com/t/introducing-mailchannels-domain-lockdown/523913

Cloudflare Community

Introducing MailChannels Domain Lockdown™

TL;DR To lock your domain name down to a specific Workers account, create a TXT record on a subdomain called _mailchannels and set the value to v=mc1 cfid=yourworker.workers.dev. After this record is published, MailChannels will reject all email messages sent from your domain that do not originate from your Cloudflare Workers account. Bolsteri...

Sskoogeer Yes it does, but you do need a Domain Lockdown record. https://community.cloudfl...

theLaCzar•8/6/23, 9:29 AM

Thank you for showing me the way!

LLW When I set the catch-all route to process the emails via a worker, what it actua...

Chaika•8/7/23, 1:30 PM

All emails that get sent to Workers, that don't error the worker out, show as Dropped, regardless if they are forwarded in the worker or not. They still reach the worker though

Chaika•8/7/23, 1:32 PM

Tail (the worker) & debug

Chaika•8/7/23, 1:36 PM

hmm, should be delivery failed if it errored

ee2de32cf55730d421ad5a5003337d653a79f374_2_1035x252.png

Chaika•8/7/23, 1:37 PM

Whatever you see in tail is right though (and if wasn't obvious before, emails do show as events in tail). It might just be that the failures are too recent to show in the summary, it's delayed a bit

Chaika•8/7/23, 1:40 PM

weird, it was "other" in the past iirc and "Delivery failed" for status. Eitherway, yea it's just an issue with your worker you have to fix, the mail is at least reaching it

Chaika•8/7/23, 1:41 PM

ignore that, that's most likely just a random bot visting your worker trying to call it over http

Chaika•8/7/23, 1:41 PM

the event body in tail should contain the details of an email, not an http request

LLW but why is that causing an error

Chaika•8/7/23, 1:42 PM

because for that worker, it can't find a fetch() in your worker

Chaika•8/7/23, 1:43 PM

email workers need a email() handler, your worker has both? or

Chaika•8/7/23, 1:44 PM

ok that doesn't have a fetch() handler, so that makes sense why that error occured. New Workers get certitficates made for them, which show in CT Logs, which bots scan, so you get quite a bit of bot traffic trying to do http requests to your email worker which fail due to it not having a fetch() handler

Chaika•8/7/23, 1:46 PM

the error is unrelated to the fetch in your email handler

Chaika•8/7/23, 1:47 PM

Maybe it helps to explain, normal workers are structured like this:

export default {
  async fetch(request, env, ctx) {
    return new Response('1691415921661');
  },
};

export default {
  async fetch(request, env, ctx) {
    return new Response('1691415921661');
  },
};

Email Workers are not special, other then just having a fetch handler, they still get certificates and the default worker.dev endpoint for them, and thus refer to what I said above about bots/etc

Chaika•8/7/23, 1:47 PM

yea makes sense, fun bots

Chaika•8/7/23, 1:48 PM

start tail and then send an email, and you should see an email event in your tail log, with the event body being an email rather then a request

LLW should i disable the HTTP route

Chaika•8/7/23, 1:48 PM

you could, some things don't play friendly with having no route though, like Quick Edit just gets upset at you (although you likely wouldn't want to use it anyway), not sure how wrangler would work with it

quisi.do•8/9/23, 11:06 PM

I have a Cloudflare worker for email, and it is reporting that 50% of requests have resulted in errors; but is there no way to read the errors? Am I losing my emails because Cloudflare won't tell me what the errors are for me to fix them?

Jeremy•8/10/23, 2:08 AM

Hello friends, I'm trying to use the email bindings, but when I import cloudflare:emailcloudflare:email I get an error saying cloudflare-internal:emailcloudflare-internal:email couldn't be found when running in

wrangler dev

wrangler dev

. Any ideas?

Bulbasaur•8/10/23, 11:38 PM

Any chance receiving emails on subdomains can get unlocked for non enterprise customers? Other similar providers provide this for normal customers, and enterprise is obviously quite prohibitive for your average user

My usecase: Fastmail has subdomain handling that allows routing, so multiple users can each have their own “catch all”, kind of like a + suffix

Cole-kun•8/11/23, 11:48 PM

Hey... I have a bunch of email routing set in my account (Custom Address), each for a specific destination, and everything worked well until today.
Now my Catch-All email is getting EVERY email. Even from emails I shouldn't get, like emails sent to my partners.

(It is weird because I can't seem to replicate the issue, it seems to be random)

Isaac McFadyen•8/13/23, 3:32 PM

#cloudflare-status

Isaac McFadyen•8/13/23, 3:32 PM

Thanks for reporting

harshjv•8/18/23, 12:24 PM

i am using email routing with workers. my usecase is forwarding emails to cf email using gmail's email forwarding feature. since most emails nowadays have DKIM & SPF, most forwarded emails are being blocked/discarded by cf. is there any way to disable incoming email spam check on cf's end similar to sendgrid (see image attached)?

Stronk•8/19/23, 1:58 AM

can I create a wildcard email relay for a subdomain

Stronk•8/19/23, 2:00 AM

oh nvm it was a diffrent tab

terror•8/21/23, 4:34 AM

hey so funny enough i bought the domain a domain, lets say google.com (example). i setup an email forwarder for kawaii@google.com to be forwarded to my icloud email, everything worked fine. i then used that email for my discord account, and immediately disliked it. so i made another email forwarder, admin@google.com, this one i liked. i setup that to forward to my gmail instead this time, only whenever id try to request email verification for that email, id NEVER receive any emails. tried testing this with other emails sending it emails, no luck. is it because the name is "admin"?

Yes it does, but you do need a Domain Lockdown record. https://community.cloudflare.com/t/introducin

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