0sg.net bouncing for bad reverse lookups?

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Re: 0sg.net bouncing for bad reverse lookups?

Postby isbbs.thebluecat » Sun Jan 22, 2023 7:50 pm

skyrock wrote:Does anyone operate his own mail server? If so, could you run the following command on Linux and post the result (without posting your IP)?

Code: Select all
dig @dns1.registrar-servers.com  +noall +answer -x XOUR.SERVERS.IP.HERE


For my server the Namecheap DNS returns no result while all other DNS (like Google) do.


Sorry, I do not operate my own email server but, I have contacted my provider and they have told me that:

On 21/1/23 3:27, Riseup Support wrote:

Hello,

Checking the logs, we see their connection come in, but they seem to not
like our TLS certificate and the connection drops. Since we can't see
the reason why they don't like our certificate, maybe you can try to
contact them and ask about it so we might be able something on our side
to fix it? it's not possible to identify what it is from our side.

------------------------------------------------------------------------

*Thebluecat wrote... *

Dear Riseup Staff,

Have been already 3 days that I am not receiving any email coming from
the anti-spam system called Spamgourmet
(https://www.spamgourmet.com/index.pl). Plus I have also checked the
"Junk" folder and also nothing is received there too.

Please, can you release any email coming from that service and make sure
riseup mail server do not block it?

The domains that they use for sending and receiving are:
-> ob.0sg.net
-> spamgourmet.com

Waiting for your reply.

Best regards and have a lovely day,

K


I will ask them to run your command for testing and I will post it as soon as they reply but, it seems that side is working because they have told me that it breaks when the TLS gets in the middle.

Best regards and have a lovely day,

K.
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Re: 0sg.net bouncing for bad reverse lookups?

Postby mysticturner » Sun Jan 22, 2023 9:48 pm

Their comment about the TLS cert being sent and the session drops. Make me wonder if our cert expired. With Josh gone and Josiah trying to handle things, it could easily have been missed. Can anyone check our certs? SysKohl?

I sent a PM to Josiah yesterday, but no response yet. My bet is that with the situation being what it is a notification is not going to happen.
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Re: 0sg.net bouncing for bad reverse lookups?

Postby mysticturner » Mon Jan 23, 2023 12:58 am

About an hour ago I got a message from spamgourmet. The actual destination domain is dfgh.

Admittedly it's spam from a company that hijacked one of my SG addresses. I've been trying to get the block set correctly to toss them but in this case, I'm glad to see it. :)

EDIT: I've now tested a couple of other domains that I've used along with several different existing addresses. All came thru as expected, the one I expected to get eaten, was. Holding my breath that it remains functioning.
Last edited by mysticturner on Mon Jan 23, 2023 3:40 am, edited 1 time in total.
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Re: 0sg.net bouncing for bad reverse lookups?

Postby bravo » Mon Jan 23, 2023 2:08 am

Update: I am receiving emails now.
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Re: 0sg.net bouncing for bad reverse lookups?

Postby akinet » Mon Jan 23, 2023 10:44 am

bravo wrote:Update: I am receiving emails now.


In my case, now it's also working sending mails from Gmail.

Does anyone know what has been changed? I think it is necessary to know how this problem has been fixed in order to fix it quickly in the future.
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Re: 0sg.net bouncing for bad reverse lookups?

Postby pbb » Mon Jan 23, 2023 11:01 am

The failures don't appear to be permanent.

I have received two dfgh.net emails this morning, one from @tp-link.com and the other from @askwoody.com

Also I had a failed test from gites.fr on the 20th Jan., but re-testing today, the test mail was delivered to me.

I don't whether to abandon ship (a LOT of work) or not.

pbb
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Re: 0sg.net bouncing for bad reverse lookups?

Postby akinet » Mon Jan 23, 2023 11:48 am

pbb wrote:I don't whether to abandon ship (a LOT of work) or not.


I am with same decission. I love spamgourmet. I have been using it for years and, at this moment, I don't know how can I help?
Is it a question of money, technical staff, ...?
Can anyone tell us how to keep this service reliable for the future?
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Re: 0sg.net bouncing for bad reverse lookups?

Postby derday » Mon Jan 23, 2023 2:20 pm

I still don't get any (forwarded) mails or the confirmation mail to change my real emailadress (@GMX)
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Re: 0sg.net bouncing for bad reverse lookups?

Postby isbbs.thebluecat » Tue Jan 24, 2023 12:29 am

skyrock wrote:Does anyone operate his own mail server? If so, could you run the following command on Linux and post the result (without posting your IP)?
Code: Select all
dig @dns1.registrar-servers.com  +noall +answer -x XOUR.SERVERS.IP.HERE

For my server the Namecheap DNS returns no result while all other DNS (like Google) do.


Hi Skyrock,
The answer from Riseup is:
(All conversation can be found here: https://support.riseup.net/en/ticket/27 ... com-domain)

Riseup relply...
Hi,
There is no need to run such command from the mail server, as it's just telling to check if there is a reverse hostname set for 198.252.153.129 (mx1.riseup.net) on the dns server dns1.registrar-servers.com.
The answer is empty.
Other dns servers such as 1.1.1.1 or 8.8.8.8 answers with mx1.riseup.net which is the expected result.

Thebluecat asked...
Dear Riseup Support Staff,
Thank you very much for your reply.
It seems that they are having some issues and are investigating it.
Following the advice from them here:
viewtopic.php?f=4&t=1901&start=15#p9111
They are requesting to run the following command from your email server:
dig @dns1.registrar-servers.com +noall +answer -x XOUR.SERVERS.IP.HERE
I think that in this case it will not be the issue, but... anything to
help them will help.
Thank you very much for this amazing service.
Best regards and have a lovely day,
K.


Also...

mysticturner wrote:Their comment about the TLS cert being sent and the session drops.
Make me wonder if our cert expired.
With Josh gone and Josiah trying to handle things, it could easily have been missed.
Can anyone check our certs? SysKohl?
I sent a PM to Josiah yesterday, but no response yet. My bet is that with the situation being what it is a notification is not going to happen.


I am pretty sure that is the case... the strange situation is that is that for some people the issue intermittent... but not for me, I am totally blocked and losing all the emails. :(

akinet wrote:
pbb wrote:I don't whether to abandon ship (a LOT of work) or not.

I am with same decission. I love spamgourmet. I have been using it for years and, at this moment, I don't know how can I help?
Is it a question of money, technical staff, ...?
Can anyone tell us how to keep this service reliable for the future?


Same!
I want to donate to keep this amazing service up and running! :D

Please, anyone, advise us how we can help.

Best regards and have a lovely day,

K.
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Re: 0sg.net bouncing for bad reverse lookups?

Postby isbbs.thebluecat » Tue Jan 24, 2023 12:40 am

Dear all,

I am also receiving errors from google advising me that the Reverse DNS lookup does not match for 209.85.221.46
Image

Please, anyone, advise us how we can help.

Best regards and have a lovely day,

K.
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Re: 0sg.net bouncing for bad reverse lookups?

Postby ooglek3 » Tue Jan 24, 2023 11:36 pm

Same failures. Looks like at least one system is deferring delivery until resolved.

gourmet7.spamgourmet.com: 550 X-Host-Lookup-Failed: Reverse DNS lookup does not match for 66.175.222.12 (deferred)

Started January 17th according to a 3rd party.

Failed as recently as Jan 22. Probably more.
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Re: 0sg.net bouncing for bad reverse lookups?

Postby facetto » Wed Jan 25, 2023 12:33 pm

Dear all, thanks for working on this issue. However I will move on to another disposable email provider which I hope has a more reliable service. I dont want to blame SG for anything but just say thank you, it´s impressive what the responsible people build up to make also my digital life easier since 2005.

All the best and I hope this hick up will be solved quickly.


BR, facetto
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Re: 0sg.net bouncing for bad reverse lookups?

Postby FreeMan » Wed Jan 25, 2023 8:37 pm

I haven't received any SG email (xoxy.net is the majority of my disposables) since 16 Jan. However, _something_ is getting through:

Image

As you can see, I've got eaten messages on the 22nd & 23rd. All 3 of those addresses are @xoxy.net.

Additionally, I just checked with my wife who also uses SG extensively, and she is getting some (but not all) emails. I've checked my spam folder (multiple times) and don't have anything new there at all.

Interestingly, I just sent an email to the "park" address with a copy to "park.mywife@xoxy.net". I see the blocked message here and my wife got her's (it's a new disposable for her). However, she sent an email from her gmail account to my "park" address and that one didn't show up as an eaten email:

Image

It seems that certain email providers are able to get some messages through, but others are not.

I too would hate to abandon SG, as it's been a faithful servant since 2004! However, without any word on what efforts are being made, I might just have to. :( It might be difficult since I can't get confirmation emails sent to my old SG addresses, though. :(
The most important point in a man's life is knowing his time when it comes.
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Re: 0sg.net bouncing for bad reverse lookups?

Postby Flounder9964 » Thu Jan 26, 2023 6:05 am

As of today January 25th

I still cannot receive any SG forwarded meails to:
riseup.net
protonmail.com

I was able to switch my protected address over to Gmail for the time being which appears to be working at least partially.

Has anyone else had any luck with either Proton or Riseup?
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Re: 0sg.net bouncing for bad reverse lookups?

Postby klyigb » Thu Jan 26, 2023 6:31 pm

same here for tuta.io domain (tutanota mail provider)

I checked with their support they don't reject mails from xoxy spamgourmet or 0sg.net

ADMIN please tell us something!!!
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