Does anyone know the correct DNS records to create for say `noreply.example.com` ? With just this I

Does anyone know the correct DNS records to create for say

noreply.example.com

noreply.example.com

?

With just this I can send emails:

TXT

TXT

TXT

TXT

_mailchannels.noreply

_mailchannels.noreply

_mailchannels.noreply

_mailchannels.noreply

v=mc1 cfid=myid.workers.dev

v=mc1 cfid=myid.workers.dev

v=mc1 cfid=myid.workers.dev

v=mc1 cfid=myid.workers.dev

However, this seem problematic:

TXT

TXT

TXT

TXT

noreply

noreply

noreply

noreply

v=spf1 include:relay.mailchannels.net ~all

v=spf1 include:relay.mailchannels.net ~all

v=spf1 include:relay.mailchannels.net ~all

v=spf1 include:relay.mailchannels.net ~all
As does this:

TXT

TXT

TXT

TXT

noreply

noreply

noreply

noreply

v=spf1 a mx include:relay.mailchannels.net ~all

v=spf1 a mx include:relay.mailchannels.net ~all

v=spf1 a mx include:relay.mailchannels.net ~all

v=spf1 a mx include:relay.mailchannels.net ~all

With those records, I start getting this error message from the send API:

Failed to send email: 550 5.1.2 [SDNF] Sender Domain Not Found...

JJrMasterModelBuilder Does anyone know the correct DNS records to create for say `noreply.example.com`...

Erisa•8/13/23, 9:11 PM

Is the Worker running on a custom domain/route or on the default

workers.dev

workers.dev

domain?

EErisa Is the Worker running on a custom domain/route or on the default `workers.dev` d...

JrMasterModelBuilderOP•8/13/23, 9:12 PM

The default

workers.dev

workers.dev

Erisa•8/13/23, 9:12 PM

I see. Unsure then

Unsmart•8/13/23, 9:15 PM

Whats your code for email sending?

setting the spf record should have no effect on the sender domain check that mail channels does

JrMasterModelBuilderOP•8/13/23, 9:17 PM

    const result = await fetch("https://api.mailchannels.net/tx/v1/send", {
      method: "POST",
      headers: {
        "Content-Type": "application/json"
      },
      body: JSON.stringify({
        personalizations: [
          {
            to: [
              {
                email: env.CONTACTED_EMAIL,
                name: env.CONTACTED_NAME
              }
            ]
          }
        ],
        from: {
          email: env.SENDING_EMAIL,
          name: env.SENDING_NAME
        },
        reply_to: {
          email,
          name
        },
        subject: env.CONTACTED_SUBJECT,
        content: [
          {
            type: "text/plain",
            value: message
          }
        ]
      })
    });
    if (result.status !== 202) {
      console.error(`${result.status}: ${await result.text()}`);
      return errorResponse(500);
    }

    const result = await fetch("https://api.mailchannels.net/tx/v1/send", {
      method: "POST",
      headers: {
        "Content-Type": "application/json"
      },
      body: JSON.stringify({
        personalizations: [
          {
            to: [
              {
                email: env.CONTACTED_EMAIL,
                name: env.CONTACTED_NAME
              }
            ]
          }
        ],
        from: {
          email: env.SENDING_EMAIL,
          name: env.SENDING_NAME
        },
        reply_to: {
          email,
          name
        },
        subject: env.CONTACTED_SUBJECT,
        content: [
          {
            type: "text/plain",
            value: message
          }
        ]
      })
    });
    if (result.status !== 202) {
      console.error(`${result.status}: ${await result.text()}`);
      return errorResponse(500);
    }

SENDING_EMAIL=noreply@noreply.example.com

SENDING_EMAIL=noreply@noreply.example.com

Unsmart•8/13/23, 9:19 PM

https://support.mailchannels.com/hc/en-us/articles/203155500-550-5-2-1-SDNF-Sender-Domain-Not-Found this is what mailchannels says about that error code

Help Center

550 5.2.1 [SDNF] Sender Domain Not Found

The "550 5.2.1 [SDNF] Sender Domain Not Found" error message indicates that our server was unable to verify the existence of a sender's email domain - in other words, the part of the email address ...

Unsmart•8/13/23, 9:20 PM

fwiw though if you are sending emails from yourself to yourself which it seems you are you can use this: https://developers.cloudflare.com/email-routing/email-workers/send-email-workers/

Send emails from Workers (beta) · Cloudflare Email Routing docs

You can send an email about your Worker’s activity from your Worker to an email address verified on Email Routing. This is useful for when you want to …

UUnsmart fwiw though if you are sending emails from yourself to yourself which it seems y...

JrMasterModelBuilderOP•8/13/23, 9:21 PM

Oh, that's interesting. Maybe I'll switch over to that later.

JrMasterModelBuilderOP•8/13/23, 9:22 PM

There's a vague thread over here I found with someone having possibly the same error, suggesting they also need MX records. Does that sense?
https://community.cloudflare.com/t/sdnf-sender-domain-not-found/446190

Unsmart•8/13/23, 9:23 PM

It looks like yeah the support thing I linked seems to suggest the email you send from must be able to receive even if you dont read it. Not sure if theres fake mx records you can put to just null route them or not

James•8/13/23, 9:24 PM

Not directly solving your problem, but I would recommend avoiding MailChannels and using what Unsmart linked, or some other service like Amazon SES, Sendgrid, Postmark, etc.

There are a lot of security implications and their responses to the whole ordeal have been very undesirable. Further reading:

JrMasterModelBuilderOP•8/13/23, 9:25 PM

Yeah, I figured there was a potential for abuse, which is why I put off trying to create an spf record until a way of locking down the sender was introduced.

UUnsmart It looks like yeah the support thing I linked seems to suggest the email you sen...

Erisa•8/13/23, 9:26 PM

A null MX record is surprisingly a thing! You just enter

for the server

chientrm.com•8/14/23, 1:42 AM

When I look into Account Analytics, there's hundred thousands requests.
But when I look into individual worker analysis, page views and visits = 0

JJames Not directly solving your problem, but I would recommend avoiding MailChannels a...

JustinNoel•8/14/23, 3:38 AM

Zoho's ZeptoMail is also a great choice. It's what I use.

sathoro•8/14/23, 8:16 AM

Postmark has amazing deliverability and I'll never use anything else. I even pay extra for our marketing software to route emails through Postmark

Original message was deleted

sathoro•8/14/23, 11:38 AM

they were cached requests, so no

James•8/14/23, 2:18 PM

I’d recommend following https://community.cloudflare.com/t/community-tip-fixing-error-524-a-timeout-occurred/42342.

James•8/14/23, 2:18 PM

But realistically, the solution here is really going to be to fix/improve your origin server to respond faster.

James•8/14/23, 2:19 PM

The max timeout of 100 seconds? You could probably get it increased with an enterprise agreement, but that’s about it as far as I know

James•8/14/23, 2:21 PM

You can try reaching out via https://www.cloudflare.com/en-gb/plans/enterprise/contact/. Do note that enterprise plans generally start at 5 figures a year.

Cloudflare

Contact Cloudflare | Enterprise Plan Contact | Cloudflare

If you are interested in Cloudflare enterprise plans and require 24/7 support, you can get in touch with us here. Contact Cloudflare sales today.

valkyrie_pilot•8/14/23, 3:11 PM

How should you go about uploading a folder to R2 from wrangler or another CLI tool?

James•8/14/23, 3:17 PM

I would recommenad

rclone

rclone

for something like that

valkyrie_pilot•8/14/23, 3:17 PM

does r2 support that?

valkyrie_pilot•8/14/23, 3:19 PM

oh cool, it does

valkyrie_pilot•8/14/23, 3:25 PM

rclone and github actions, oh dear

nex•8/14/23, 3:26 PM

does anyone have any idea what might trigger this error when querying GQL? it's not in the docs as far as I can see, and it's only been asked in here once which has gone without reply

rate limiter budget depleted, please try again later

rate limiter budget depleted, please try again later

JJames I would recommenad `rclone` for something like that

valkyrie_pilot•8/14/23, 5:09 PM

So rclone mostly works, but it creates a new file when i try to specify a folder in the bucket.

InvalidParameter: 1 validation error(s) found.
- minimum field size of 1, PutObjectInput.Key.

InvalidParameter: 1 validation error(s) found.
- minimum field size of 1, PutObjectInput.Key.

rclone sync ./public speederboard-testing: -vv

rclone sync ./public speederboard-testing: -vv

JJames Not directly solving your problem, but I would recommend avoiding MailChannels a...

skoogeer•8/14/23, 6:19 PM

There is no potential for spoofing your domain on MailChannels now that Domain Lockdown is required, so I'm not sure why you are advising people to go elsewhere.

Sskoogeer There is no potential for spoofing your domain on MailChannels now that Domain L...

James•8/14/23, 6:20 PM

Was there an announcement for Domain Lockdown now being required? This seems to be a new change.

James•8/14/23, 6:21 PM

I'm very happy this is now required, but considering how easy it is to still spoof many of your customers for a tiny price, and the general response from MailChannels to this whole ordeal, I'm still not comfortable recommending MailChannels, sorry

JJrMasterModelBuilder There's a vague thread over here I found with someone having possibly the same e...

skoogeer•8/14/23, 6:30 PM

We check whether your email sender domain has an A, AAAA, or MX record. If it has none of these, then we generate the SDNF rejection error. Make sure the sending email address - the one specified in the "from" parameter in your API call - successfully resolves.

JJames I'm very happy this is now required, but considering how easy it is to still spo...

skoogeer•8/14/23, 6:36 PM

The announcement was posted today: https://community.cloudflare.com/t/this-week-mailchannels-will-enforce-domain-lockdown-on-legacy-workers-users/544874

Sskoogeer The announcement was posted today: https://community.cloudflare.com/t/this-week-...

James•8/14/23, 6:37 PM

Yeah I just saw that, thank you for the update

Sskoogeer We check whether your email sender domain has an A, AAAA, or MX record. If it ha...

JrMasterModelBuilderOP•8/14/23, 6:45 PM

So it would just need any A, AAAA, or MX record for

noreply.example.com

noreply.example.com

Does anyone know the correct DNS records to create for say `noreply.example.com` ? With just this I

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