How would I go about adding a bounce address with Mailchannels? I've tried using mailfrom as their d

How would I go about adding a bounce address with Mailchannels? I've tried using mailfrom as their docs say, setting a Return-Path via manual setting headers, but it seems to not work

Aaddison How would I go about adding a bounce address with Mailchannels? I've tried using...

DarkDeviL•2/23/24, 4:44 AM

Can you elaborate on what you see when trying the "mailfrommailfrom", and how you get to the conclusion that it does not (seem to) work?

DarkDeviL•2/23/24, 4:45 AM

Manually attempting to add Return-Path headers will most likely be immolated by receivers, since they cannot trust that, and will (likely) add their own based on the actual MAIL FROM from the SMTP transaction.

DDarkDeviL Can you elaborate on what you see when trying the "`mailfrom`", and how you get ...

addisonOP•2/23/24, 4:47 AM

i've sent a few emails to https://mail-tester.com & gmail. Mail-tester reports the bounce address as the from address. I've tried looking for the email im setting as the MAIL FROM:MAIL FROM: in the headers and it I can't seem to find it

Newsletters spam test by mail-tester.com

mail-tester.com is a free online service that allows you to test your emails for Spam, Malformed Content and Mail Server Configuration problems

addisonOP•2/23/24, 4:49 AM

this is how i'm setting it (based off the docs)

Aaddison this is how i'm setting it (based off the [docs](https://api.mailchannels.net/tx...

DarkDeviL•2/23/24, 4:59 AM

Always with the same mailfrommailfrom domain, as the one in that screenshot?

DDarkDeviL Always with the same `mailfrom` domain, as the one in that screenshot?

addisonOP•2/23/24, 5:02 AM

yeah always that domain, does it have to be the same domain as from? I assume not

DarkDeviL•2/23/24, 5:03 AM

Technically, no, they can be two completely different domain names (as well as the local parts, i.e. the stuff before

DarkDeviL•2/23/24, 5:06 AM

However, one thing I notice digging on that domain name:

You do not have a _mailchannels_mailchannels TXT record, for their Domain Lockdown.

addisonOP•2/23/24, 5:08 AM

ohhh does mailfrom need the record too? ill give that a shot

addisonOP•2/23/24, 5:18 AM

there was an invalid mailchannels record but i swapped it with the valid one and still no luck

Aaddison ohhh does mailfrom need the record too? ill give that a shot

DarkDeviL•2/23/24, 5:21 AM

The "Domain Lockdown" thing was supposed to "fix" a problem where every Workers user, could pretend to be someone else's domain, and pass SPF checks, due to the wide include:relay.mailchannels.netinclude:relay.mailchannels.net, so it was just a thought I got.

It wouldn't make any sense to apply that to the "

from

from

" (e.g. header From:From:), but only the "mailfrommailfrom" (SMTP MAIL FROM) part, assuming that it exists, as that would be the one the SPF checks would be checked against.

addisonOP•2/23/24, 5:24 AM

seems like mail from still doesn't exist unfortunately

DarkDeviL•2/23/24, 5:30 AM

Can you try to shoot one or more messages my way, where you play around with mailfrommailfrom?

DarkDeviL•2/23/24, 5:30 AM

cloudflare-discord-476641014841475084-addison@darkdevil.dkcloudflare-discord-476641014841475084-addison@darkdevil.dk

DarkDeviL•2/23/24, 5:31 AM

Alternatively, if you want a numbered tagging or so, if you take personal notes, you can do like:

DarkDeviL•2/23/24, 5:31 AM

cloudflare-discord-476641014841475084-addison-1@darkdevil.dkcloudflare-discord-476641014841475084-addison-1@darkdevil.dk
cloudflare-discord-476641014841475084-addison-2@darkdevil.dkcloudflare-discord-476641014841475084-addison-2@darkdevil.dk
[...]

addisonOP•2/23/24, 5:32 AM

sent one over

DarkDeviL•2/23/24, 5:34 AM

Exact same testing@testing@ SMTP FROM (envelope from, Return-Path, ...) as header From:.

addisonOP•2/23/24, 5:35 AM

this is what im sending over

DarkDeviL•2/23/24, 5:37 AM

It would be all guessing though, ... I wonder if they might have a documentation issue.

DarkDeviL•2/23/24, 5:38 AM

I mean, it goes with multiple distinct names such as SMTP FROM (envelope from, Return-Path, ...) ?

DarkDeviL•2/23/24, 5:38 AM

Can you try replacing mailfrom:mailfrom: with mfrom:mfrom:, and see if that makes any difference?

addisonOP•2/23/24, 5:39 AM

sent

addisonOP•2/23/24, 5:39 AM

their docs specify mailfrom:mailfrom: but i cant find any examples that use it

DarkDeviL•2/23/24, 5:40 AM

Exact same testing@testing@ on both of them again.

DarkDeviL•2/23/24, 5:40 AM

And yeah, it's very limited (to none) that you find with the mailfrom:mailfrom:, I just happened to find it at some point, which is why I suggested it to you earlier this month, as according to the documentation, that's the one we're after.

addisonOP•2/23/24, 5:41 AM

yeah you are where i got the idea from in the first place

addisonOP•2/23/24, 5:41 AM

definitely feels like a documentation issue though

DarkDeviL•2/23/24, 5:42 AM

envfrom:envfrom: could be tried as well though.

addisonOP•2/23/24, 5:43 AM

i sent another with envfrom

DarkDeviL•2/23/24, 5:43 AM

But yeah, either technical (as in incorrectly not doing at all), or documentation issue (such as documenting the wrong thing) would be what I suspect too.

DarkDeviL•2/23/24, 5:44 AM

Third time wasn't the lucky time here, as it's still just testing@testing@.

addisonOP•2/23/24, 5:44 AM

is there some sort of contact for this? i've tried contacting mailchannels support before with no luck

DarkDeviL•2/23/24, 5:54 AM

If you have already tried MailChannels Support (cc @skoogeer @fiirhok), with no luck, I don't think so.

However, you could try assuming that the email (or whatever) was lost in transmission, and try again.

skoogeer•2/23/24, 5:56 AM

Please feel free to submit a support ticket to us via our web site and someone can search our logs to track down your delivery/

DDarkDeviL If you have already tried MailChannels Support (cc @skoogeer @fiirhok), with no ...

addisonOP•2/23/24, 6:11 AM

I'll give it a try again, last time I did I had some weird account issues with the support thing they use

Aaddison I'll give it a try again, last time I did I had some weird account issues with t...

DarkDeviL•2/23/24, 6:16 AM

You're more than welcome to ping me, and let me know what you're (eventually) finding out with them.

Sskoogeer Please feel free to submit a support ticket to us via our web site and someone c...

addisonOP•2/23/24, 7:00 AM

I've done so now, have a good night chat

charl.dev•2/23/24, 10:30 AM

Hi guys at 8:46 we had an issue where a lot of api calls proxied via a worker was giving 526 errors. When we updated the worker triggers to be more explicit, it started working

charl.dev•2/23/24, 10:31 AM

Has anything changed and would workers ever return a 526

charl.dev•2/23/24, 10:36 AM

We confirmed it was a wild card at the beginning

charl.dev•2/23/24, 10:37 AM

Has anything with the way the triggers work changed?

charl.dev•2/23/24, 10:49 AM

Ticket 3158394

charl.dev•2/23/24, 10:59 AM

Just want to know if something with triggers and prefixed with wildcard would be effected

Liam•2/23/24, 2:59 PM

Hey guys! Quick question:

I'm using a cloudflare reverse proxy for load balancing on API calls. Is there anything I need to explicitly do to make the load balancing work if I'm using the default template?

BBulbasaur https://blog.cloudflare.com/updated-tos Actually, now I'm confused again with th...

Santosh•2/23/24, 4:14 PM

Can Cloudflare comment on this thread? TOS and all are good, clarifications would do wonders as well.

BBulbasaur https://blog.cloudflare.com/updated-tos Actually, now I'm confused again with th...

Hello, I’m Allie!•2/23/24, 4:17 PM

Assets must be stored on the Developer Platform(R2, Images, R2). Proxying a video through a Worker does not count, and thus would still be against the ToS

Santosh•2/23/24, 4:17 PM

Proxying a video srtored on R2, what would that fall under?

Hello, I’m Allie!•2/23/24, 4:17 PM

Though note, I am not a lawyer, nor am I Cloudflare Support, so for 100% certainty, I would recommend filing a ticket

SSantosh Proxying a video srtored on R2, what would that fall under?

Hello, I’m Allie!•2/23/24, 4:17 PM

Fine by ToS

How would I go about adding a bounce address with Mailchannels? I've tried using mailfrom as their d

Similar Threads

Similar Threads

Similar Threads