Found it Unknown error: transient error (421): 4.7.28 Gmail has detected an unusual rate of unsoli

Found it

Unknown error: transient error (421): 4.7.28 Gmail has detected an unusual rate of unsolicited mail originating4.7.28 from your DKIM domain [cloudflare-email.net 36]. To protect our4.7.28 users from spam, mail sent from your domain has been temporarily4.7.28 rate limited. For more information, go to4.7.28 https://support.google.com/mail/?p=UnsolicitedRateLimitError to4.7.28 review our Bulk Email Senders Guidelines. b14-20020a056402350e00b0056c4cc04f2bsi8009931edd.210 - gsmtp

Kkristian Found it Unknown error: transient error (421): 4.7.28 Gmail has detected an un...

jensen•4/5/24, 3:03 PM

https://www.cloudflarestatus.com/incidents/0jx8x02cv5l6

I don't think this is actually fixed. If it is then we need to do something on our end.

Email Routing deliverability issues

JosBot•4/5/24, 7:49 PM

This hasn't been resolved

TreeDiagramIRC•4/6/24, 3:54 AM

Hi! Is anyone here encountering mail delivery issues from Cloudflare Email Routing? I found that emails sending to my domain are not being forwarded to configured destinations and do not even appear in the Cloudflare dashboard.

TreeDiagramIRC•4/6/24, 3:57 AM

I configured emails to be forwarded to Outlook.com and QQ mail, but none of them works now.

Erisa•4/6/24, 11:25 AM

Hi folks we are aware of these issues and looking into them, sorry for the inconvenience

Erisa•4/6/24, 11:33 AM

We have raised an incident: https://www.cloudflarestatus.com/incidents/wgr60272xc8w

Cloudflare Email Routing Issues

EErisa We have raised an incident: https://www.cloudflarestatus.com/incidents/wgr60272x...

TreeDiagramIRC•4/6/24, 2:57 PM

I just got my missing emails several minutes ago. Thanks for your work!

jensen•4/6/24, 8:31 PM

Still getting the same error

Unknown error: transient error (421): 4.7.28 Gmail has detected an unusual rate of unsolicited mail originating4.7.28 from your DKIM domain [cloudflare-email.net 36]. To protect our4.7.28 users from spam, mail sent from your domain has been temporarily4.7.28 rate limited. For more information, go to4.7.28 https://support.google.com/mail/?p=UnsolicitedRateLimitError to4.7.28 review our Bulk Email Senders Guidelines. fd21-20020a056402389500b0056e2c12658esi2094710edb.661 - gsmtp

Reggie•4/8/24, 11:26 AM

Thought I'd pop my head back in again to throw my raised hand amongst some others indicating the issue re: email routing starting again. Mine's forwarding to Outlook addresses, but I assume others will be affected too considering it's a spamhaus blocklist again. Seems to have started around 5hrs ago,

I know this is a free service, but it's a pretty big one for it not to work.

Celakanth•4/8/24, 12:07 PM

Yup I had an issue earlier today where the emails where being blocked error 512 3.0 some emails have started comming through but any of the blocked ones I dont know if they will come through

Ben•4/11/24, 8:03 PM

Hey, just wanted to also say things are still broken for me. Having a considerable number of emails blocked since noon Wednesday (UTC):

Unknown error: transient error (421): 4.7.28 Gmail has detected an unusual rate of unsolicited mail originating4.7.28 from your DKIM domain [cloudflare-email.net 36]. To protect our4.7.28 users from spam, mail sent from your domain has been temporarily4.7.28 rate limited. For more information, go to4.7.28 https://support.google.com/mail/?p=UnsolicitedRateLimitError to4.7.28 review our Bulk Email Senders Guidelines. i13-20020adfe48d000000b003437efe1515si1307449wrm.344 - gsmtp

Unknown error: transient error (421): 4.7.28 Gmail has detected an unusual rate of unsolicited mail originating4.7.28 from your DKIM domain [cloudflare-email.net 36]. To protect our4.7.28 users from spam, mail sent from your domain has been temporarily4.7.28 rate limited. For more information, go to4.7.28 https://support.google.com/mail/?p=UnsolicitedRateLimitError to4.7.28 review our Bulk Email Senders Guidelines. i13-20020adfe48d000000b003437efe1515si1307449wrm.344 - gsmtp

Briefly resumed between 6AM-8PM today, but now it's back to completely blocked. Hate to complain about a free service but I am relying on this for some important emails.

BBen Hey, just wanted to also say things are still broken for me. Having a considerab...

Chaika•4/11/24, 8:33 PM

Hate to complain about a free service but I am relying on this for some important emails.

Email Forwarding/routing can be ok, but I would really recommend not relying on forwarding for anything critical. It's just not a smart idea, this isn't CF Email Routing specific but in general any forwarding service will have issues, and has had occasional issues for a while:
https://community.cloudflare.com/t/gmail-blocking-emails-routed-from-cloudflare/468070/2?u=chaika
https://community.cloudflare.com/t/email-routing-to-gmail-blocked-as-spam/422232
Get a proper email host like Fastmail or Google Workspace or ProtonMail if it's important at all. Those would even let you reply from your custom inbox.

Chaika•4/11/24, 8:36 PM

(or alternatively get a receiving inbox of which you have full and complete control over the inbound filters so you can whitelist all the forwarded mail)

CChaika > Hate to complain about a free service but I am relying on this for some impor...

Ben•4/11/24, 9:13 PM

I completely understand that email forwarding services can be temperamental, but at the time I had assumed this would be as reliable as Cloudflare's other services. These emails are not critically important, but as with all emails, I'd quite like to be able to read them.

I am just a little concerned that this is a repeating problem and there hasn't been a massive amount of communication towards a solution. I would imagine that everyone using this service, regardless of the importance of their emails, are using it to consistently forward emails. I completely understand that this isn't directly Cloudflare's fault here, but I'm just a bit confused as to if I should be staying with this product if it is struggling to fullfil its core objectives and is showing little sign of improvement.

Sorry if this came off as ungrateful. I appreciate the hard work that goes into creating this product

Alisson Acioli•4/12/24, 4:51 PM

Hello,
A question about email routing... Does it only redirect emails received at mymail@mydomain.com to alissonacioli@gmail.com or would there be some way, for example, for me to also respond, have an inbox, etc.. Or Is there any alternative to use with cloudflare email? Could someone explain it to me.

BBen I completely understand that email forwarding services can be temperamental, but...

Chaika•4/12/24, 5:04 PM

Sorry if this came off as ungrateful

You're all good. At least for me personally, I have a few emails each day going to gmail and they've been fine, not sure why gmail is upset at your forwarding, but I'm just saying in general even if CF finds some workaround/communicates with the gmail team to get this fixed, it's very likely it will reoccur occasionally in some form with some providers. It's just the nature of forwarding to some place you don't have control over, you're breaking spf/forwarding potentially spam through your/their domain, etc.

AAlisson Acioli Hello, A question about email routing... Does it only redirect emails received a...

Chaika•4/12/24, 5:05 PM

In short, you can really only receive
In long, Email Workers can reply (but only at that instant of email incoming), and Workers in general can send out email but only to verified addresses

AAlisson Acioli Hello, A question about email routing... Does it only redirect emails received a...

Loki•4/12/24, 5:50 PM

You can use something separate for sending, i.e. I use Brevo for SMTP, then I added the account to the same inbox I was receiving on using the SMTP API key. The end result is functionality like any other email account.

AAdil I want to route email from workers to telegram bot. But I am unable to decode em...

DaniFoldi•4/15/24, 7:59 PM

Have you tried using the

postal-mime

postal-mime

package from npm? They have a very nice demo specifically for email workers

Jignesh Thummar•4/21/24, 1:25 AM

i have one of my custom email addresses on workspace.google.com , i want to use rest of my custom email addresses with same domain using cloudflare Email Routing is it possible?

Jignesh Thummar•4/21/24, 2:17 AM

any way to send email from custom email address?

Unsmart•4/21/24, 2:36 AM

Cloudflare does not offer email sending.

You cant use email routing and workspace at the same time. (At least not without a very complex setup)

Jignesh Thummar•4/21/24, 3:21 AM

ok so if i want to remove google workspace what i need to do? since i want to use cludflare email routinng and setup custom SMTP to send email using same domain (i think thats possible in @gmail.com)

Jignesh Thummar•4/21/24, 4:59 PM

or may be we can use any external paid sending service like mailchamp ?

rdm•4/21/24, 5:06 PM

If you are not wanting to pay for Google Workspace and wanted to use Email Routing.. You will need 1) a mailbox to use for the destintation route. And if you want SMTP/outbound to truly be signed by your domain for increased deliverability, you would need a paid service for that outbound leg.

Jignesh Thummar•4/21/24, 9:46 PM

thanks yes thats what i am looking for

CChaika In short, you can really only receive In long, Email Workers can reply (but only...

harshjv•4/22/24, 6:50 AM

any plans to change this in the future? looking for an option to forward incoming email to an unverified email

Hharshjv any plans to change this in the future? looking for an option to forward incomin...

Hello, I’m Allie!•4/22/24, 6:51 AM

IIRC no, since Cloudflare would then have to manage deliverability problems

conneo•4/23/24, 9:56 AM

Hi, we build a solution in CF workers to store attachments from incoming mails to R2. Sometimes the emails are marked as Rejected mostly due to some misconfigured sender mail server (SPF / DKIM). Is there any possibility to receive these emails in our Worker script? It should be very nice if we could change some setting to tell the email route that it should always deliver to the worker and let the worker script make the decision to process the email based on a spam score or sender address. Are there any plans to introduce this functionality?

conneo•4/23/24, 10:02 AM

Another question: the dashboard only shows the received emails with status for the last 24 hours (in the list). Is it possible to get a list of all rejected and error messages via Cloudflare API?

Cconneo Hi, we build a solution in CF workers to store attachments from incoming mails t...

conneo•4/23/24, 11:09 AM

As an idea to solve this, should it be possible to always accept emails from the addresses that are validated as Destination address?

Johny_96•4/25/24, 8:04 AM

Hello, one of my colleagues is unable to access the Email page in any of our domains, receiving Authentication error 10000, what permissions are necessary for it?

sdan•4/27/24, 11:26 PM

anyone know how i can add a fetch handler into my email worker? i want to have a http interface with it if thats possible

sako•4/28/24, 10:56 AM

I keep on getting these messages when I use email lists I've built using a combination of email routing and a worker. I'm aware that gmail filters these messages and I'd like to turn these warnings off. Is there a way of doing this?

sako•4/28/24, 11:08 AM

As mentioned, these are email lists, they would be kind of pointless if I remove recipients, every time a recipient replies to this email list as part of an ongoing discussion, they get this email.

rdm•4/28/24, 12:09 PM

As the screenshot mentions, if you're sending from a gmail account and you include that same gmail account.. Google is discarding it as a duplicate. So, open a ticket with Google, and ask them if there's a way to exclude your gmail account from the rules they impose on their servers. Good luck.

sako•4/28/24, 1:28 PM

Thanks for the response, that is however not the issue, the fact that google dismisses emails sent to yourself (via an alias) is in my case wanted behavior, the fact that cloudflare warns me about this behavior every time this happens is the unwanted behavior. As mentioned the reason this happens is because this concerns email lists so I'm on the list and when I want to reply to all the other people on the list I get this email, as do all other people when they reply on the list. Which is annoying, therefor I'd like to turn this warning email off.

rdm•4/28/24, 1:46 PM

I understand the reason. But if you're sending from a gmail to the same gmail, no matter the method in which you do it, google is likely to discard unless a method like ARC is employed.

sako•4/28/24, 3:03 PM

Yes which is exacly what I want ot happen, I have no problem/prefer with how gemail handles this, I want Cloudflare to stop sending the email above when I do

rdm•4/28/24, 3:14 PM

Ahh, ok, so you're wanting Cloudlfare to make an exemption for you, you're in the right place. I think the Email Routing product owner is in this channel. Good luck!

sako•4/28/24, 3:48 PM

An exception for just me might be a bit much :p however, a setting to turn this off would be great! Which might already exist but I cannot find it.

rdm•4/28/24, 4:29 PM

Turning it off... only for you.. beause it annoys you. I think that's an exception. But, I did want to know. Are you using just standard email routing from the dash or email workers? The ARC rewrite may (I'm not a programmer, just an old school postmaster) be possible with email workers.

sako•4/28/24, 5:49 PM

I'm using email workers, though I guess under the hood it's the same thing. But I was of course referring to an option that everyone has to turn off these emails, maybe indeed something that you could push as part of the workers code or a setting in the dashboard to turn of warnings for your account. Not sure what you are referring to in the ARC rewrite.

Ssako I'm using email workers, though I guess under the hood it's the same thing. But ...

rdm•4/28/24, 6:57 PM

You said you were using it for a mailing list: https://www.mailgun.com/blog/deliverability/authentication-received-chain/

rdm•4/28/24, 6:59 PM

Not sure if that's possible with email workers, again, I'm not a programmer lol (I wish I knew... anything about programming).

But, ARC is now a forced requirement for consistent deliverability to Google/Microsoft.

rdm•4/28/24, 6:59 PM

hopefully this helps (I just make the assumption if you ARC your mail, google will no longer think it's "From: Gmail account -- To: samegmailaccount"... which would stop those messages; but, you're right, perhaps it is a worker's "flag" or whatever the term would be. I'll be watching, you have me curious now.

conneo•4/30/24, 11:45 AM

Is there anyone of the @cloudflare dev team who can tell if it is possible to whitelist sender email addresses for incoming mail to worker? Perhaps by adding them as validated Destination Address?

Unknown error: transient error (421): 4.7.28 Gmail has detected an unusual rate of unsolicited mail originating4.7.28 from your DKIM domain [cloudflare-email.net 36]. To protect our4.7.28 users from spam, mail sent from your domain has been temporarily4.7.28 rate limited. For more information, go to4.7.28 https://support.google.com/mail/?p=UnsolicitedRateLimitError to4.7.28 review our Bulk Email Senders Guidelines. i13-20020adfe48d000000b003437efe1515si1307449wrm.344 - gsmtp

Found it Unknown error: transient error (421): 4.7.28 Gmail has detected an unusual rate of unsoli

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