mx records

Hi, I configured my ns records from my domain to cloudflares but where can i configure the mx records from my mail its disabled on my domain provider because i changed my ns records but now i cant receive any emails in my mailbox from my provider. My provider is strato.

DyLnOP•8/18/23, 5:43 PM

I mean simply configuring strato mail to cloudflare

DDyLn Hi, I configured my ns records from my domain to cloudflares but where can i con...

Chaika•8/18/23, 5:53 PM

You would add the MX Records you need for Strato/had at your old dns provider in Cloudflare, under DNS Records : https://dash.cloudflare.com/?to=/:account/:zone/dns/records

CChaika You would add the MX Records you need for Strato/had at your old dns provider in...

DyLnOP•8/18/23, 10:20 PM

I dont have stratos mx records

DDyLn I dont have stratos mx records

Soham•8/19/23, 7:19 AM

How did it work on your previous registrar then?

SSoham How did it work on your previous registrar then?

DyLnOP•8/19/23, 8:41 AM

Strato had auto done the mx records and txt with their own but i dont got them

DDyLn Strato had auto done the mx records and txt with their own but i dont got them

DarkDeviL•8/19/23, 5:13 PM

Here's a previous forum thread from January, regarding a Strato set up: https://community.cloudflare.com/t/not-able-to-recieve-mails-trough-cloudflare/455069

Shortcut - MX: https://community.cloudflare.com/t/not-able-to-recieve-mails-trough-cloudflare/455069/7

Shortcut - Domain authentication, TXT (SPF) record, et cetera:
https://community.cloudflare.com/t/not-able-to-recieve-mails-trough-cloudflare/455069/10

DDarkDeviL Here's a previous forum thread from January, regarding a Strato set up: <https:/...

DyLnOP•8/20/23, 8:26 AM

So the smtp.domain.com and pop3, imap also work

DyLnOP•8/20/23, 8:38 AM

And with the txt there are 3 different mx records and 2 txt so where do i need to put then

DyLnOP•8/20/23, 8:38 AM

Them

DyLnOP•8/21/23, 11:31 AM

Got 530 5.7.0 User not authenticated

DDyLn And with the txt there are 3 different mx records and 2 txt so where do i need t...

DarkDeviL•8/21/23, 6:22 PM

There should only be one MX record on the above link (the one marked as solution)?

DDyLn Got 530 5.7.0 User not authenticated

DarkDeviL•8/21/23, 6:24 PM

Did this one come while trying to send a message?

If so, it would typically be one of the following reasons:

#1: You're either not connecting to the right server for outbound mails (which may not be the same as the one in your MX record).

#2: You've forgot to tell your email client to authenticate with the outbound mail server, using your username (often just your email) and password.

DDarkDeviL Did this one come while trying to send a message? If so, it would typically be...

DyLnOP•8/21/23, 9:51 PM

Can you explain the second more

DDyLn Can you explain the second more

DarkDeviL•8/21/23, 10:03 PM

If #2 is the culprit, your email client (e.g. Thunderbird) literally needs to authenticate, e.g. to say "Hi, I'm john.doe@example.comjohn.doe@example.com with the password ch4ng3m3ch4ng3m3", before it is trying to send the message.

If it doesn't try to authenticate (e.g. log in) before sending an message, a such error like the "User not authenticated" may appear.

How you can set up your email client to do that, depends on which email client you use, for Thunderbird, there is an example here:

https://www.hostpapa.com/knowledgebase/set-smtp-authentication/

In the example with Thunderbird, that link was one of the results found by Googling "thunderbird enable smtp authentication" (you can simply replace Thunderbird with the name of your email client, if you use something other than Thunderbird).

DDarkDeviL If #2 is the culprit, your email client (e.g. Thunderbird) literally needs to au...

DyLnOP•8/22/23, 8:30 AM

I dont know if it could help here is my are my mx/txt records

DyLnOP•8/22/23, 8:31 AM

DyLnOP•8/22/23, 8:34 AM

But im sending from my mail to my strato email

DyLnOP•8/22/23, 8:36 AM

My mail is a gmail from gmail

DDyLn Click to see attachment

DarkDeviL•8/22/23, 1:18 PM

You haven't yet set it up / re-configured the MX records according to the link I've shared above.

Kill the MX with pointing to Mail server smtp.strato.comsmtp.strato.com.
Replace Mail server smtp.strato.desmtp.strato.de with Mail server smtp.rzone.desmtp.rzone.de in the other (remaining) record.

Final result:

One single MX record, that according to your screenshot, would say:

smtp.rzone.desmtp.rzone.de handles mail for {domain}.

DDarkDeviL You haven't yet set it up / re-configured the MX records according to the link I...

DyLnOP•8/22/23, 3:13 PM

Should this also fix the problem that i cant send emails from the strato webmail site from the strato mail

DDyLn Should this also fix the problem that i cant send emails from the strato webmail...

DarkDeviL•8/22/23, 7:28 PM

The above will only change which mail server that third party mail servers (e.g. from outside Strato, Google's in case of Gmail) will connect to, while trying to send messages to you.

For problems regarding sending messages through Strato webmail, you would need to contact Strato.

DDarkDeviL The above will only change which mail server that third party mail servers (e.g....

DyLnOP•8/23/23, 2:51 PM

Got outgoing mails working but ingoing still not

DyLnOP•8/23/23, 7:57 PM

DDyLn Click to see attachment

DarkDeviL•8/23/23, 8:08 PM

I gave you smtp.rzone.desmtp.rzone.de, ending with the TLD for Germany, .DE.DE, NOT .COM.COM.

DDarkDeviL I gave you `smtp.rzone.de`, ending with the TLD for Germany, `.DE`, **NOT** `.C...

DyLnOP•8/23/23, 8:10 PM

Though there wasnt a difference

DarkDeviL•8/23/23, 8:12 PM

You unfortunately cannot just assume such :/

DarkDeviL•8/23/23, 8:17 PM

And ... you aren't even guaranteed that Strato is the owner of rzone.comrzone.com, just because they got rzone.derzone.de, - so chances are, by assuming such, that someone else could possibly get their hands on your mails in this specific example.

DDarkDeviL And ... you aren't even guaranteed that Strato is the owner of `rzone.com`, just...

DyLnOP•8/23/23, 8:35 PM

My problem sorry

DyLnOP•8/23/23, 8:37 PM

Does cloudflare also take 24 hours for dns changes

DDyLn Does cloudflare also take 24 hours for dns changes

DarkDeviL•8/23/23, 8:40 PM

It can take a long while, but that isn't necessarily Cloudflare (or whatever provider you use)'s fault.

DarkDeviL•8/23/23, 8:40 PM

If I am guessing right on your actual domain name, it appears you have the MX record set to Auto in TTL, which is 300 seconds (5 minutes).

DarkDeviL•8/23/23, 8:42 PM

So things could start to be functional from after 5 minutes has passed away.

DarkDeviL•8/23/23, 8:42 PM

However, your ISP's resolver could be also be deciding to cache the DNS for much longer, saying "5 minutes is too low TTL, we'll do a minimum of 14400 seconds (4 hours)", or even weeks/months, if they wanted to.

DyLnOP•8/23/23, 8:42 PM

DyLnOP•8/23/23, 8:43 PM

Using strato it is 24 hours

DarkDeviL•8/23/23, 8:44 PM

It is also a better choice than 5 minutes, if you ask me.

DarkDeviL•8/23/23, 8:46 PM

Assuming you're browsing around on your own website for 24 hours straight, with a TTL of 300 seconds (5 minutes), you would literally end up on being sending at least 288 DNS queries per day. Those 288 DNS queries could be limited to just one single DNS query, if the TTL was 86400 seconds (24 hours).

DarkDeviL•8/23/23, 8:48 PM

Some slow DNS (or bad connectivity between e.g. your DNS resolver and the authoritative DNS (Cloudflare in this situation) could also slow down your website a lot.

DarkDeviL•8/23/23, 8:48 PM

With a TTL of 86400 (24 hours), assuming your ISP would honour the TTL and keep the DNS entry in it's cache for that long, ... could therefore have the benefit of speeding up your website.

DarkDeviL•8/23/23, 8:49 PM

But it would at the same time have the unfortunate consequence that changing from old servers to new servers could be "slow", unless you plan in advance...

But, how often are you changing your servers anyway?

DarkDeviL•8/23/23, 8:50 PM

Pros/cons with everything

DyLnOP•8/23/23, 10:50 PM

DDarkDeviL But it would at the same time have the unfortunate consequence that changing fro...

DyLnOP•8/23/23, 10:51 PM

DDarkDeviL It is also a better choice than 5 minutes, if you ask me.

DyLnOP•8/24/23, 1:21 AM

Everything is working thanks for helping i dont understand anything of email records still but that doesnt matter because it works

DyLnOP•8/24/23, 1:26 AM

Or the 24 hour change is only by changing name server dns records

DDyLn Everything is working thanks for helping i dont understand anything of email rec...

DarkDeviL•8/24/23, 11:44 PM

Glad I could help

DDyLn ?

DarkDeviL•8/24/23, 11:48 PM

If you imagine DNS and it's TTL (Time To Live) is quite simialr to e.g. when you with your website tells browsers (or caches in between, such as e.g. CDN's) to cache your content for a while, so that your own server won't be bothered with the traffic, and the data will (temporarily) be available closer to your users.

DarkDeviL•8/24/23, 11:49 PM

If the https://static.example.com/example.pnghttps://static.example.com/example.png image is cached by Cloudflare, often in in your own city (the datacenter you hit), the traffic will be very speedy.

You -> Cloudflare -> (you have the image)

If not, it will go:

You -> Cloudflare -> The server behind

If you have set some browser cache to cache the image for a year, you might have problems that you cannot change the image on the URL address above, since the browsers can remember the image.

DarkDeviL•8/24/23, 11:52 PM

DNS simply works the same way:

You -> Your router -> Your ISP's resolver -> The domain (e.g.

example.com

example.com

)'s name servers (for example Cloudflare).

However, if your router has it cached, it only goes:

You -> Your router

If your ISP has the DNS response cached already, but your router doesn't, you might go:

You -> Your router -> Your ISP's resolver

Since your router at least, but often also your ISP's resolver are very close to you, it will be very speedy this way due to the "DNS cache".

However, the DNS cache will similar to the web cache above cause issues, if you want to update the DNS, you might have to wait a while.

DarkDeviL•8/24/23, 11:53 PM

As such, there are pros/good things (very speedy) and cons/bad things (slow to update) with e.g. caches - no matter if it is web traffic or DNS traffic we're dealing with.

mx records

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