2 different Linodes won’t let me send to each other

Help with Setup/Upgrade
1

I have 2 seperate Linodes operating seperate MIAB, however if I try to send e-mail from one to another it gets blocked. I’m not sure what I can do to resolve this.

This is what I get back.

This is the mail system at host boxDOTdesignbuildbrewingDOTcom.

I’m sorry to have to inform you that your message could not
be delivered to one or more recipients. It’s attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

              The mail system

<mikeATtheoutlaw.net>: host boxDOTtheoutlawDOTnet[2600:3c02::f03c:91ff:fe0b:df4b]
said: 554 5.7.1 Service unavailable; Client host
[2600:3c02::f03c:91ff:fe0b:4cdd] blocked using zenDOTspam hausDOTorg;
https://wwwDOTspamhausDOTorg/sbl/query/SBLCSS (in reply to RCPT TO command)

2

Could you please be a bit more specific? Gets blocked how? and you know this how? etc…

1 Like
4

This is what I get back.

This is the mail system at host boxDOTdesignbuildbrewingDOTcom.
I’m sorry to have to inform you that your message could not
be delivered to one or more recipients. It’s attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
: host boxDOTtheoutlawDOTnet[2600:3c02::f03c:91ff:fe0b:df4b]
said: 554 5.7.1 Service unavailable; Client host
[2600:3c02::f03c:91ff:fe0b:4cdd] blocked using zenDOTspam hausDOTorg;
wtimes3DOTspamhausDOTorg/sbl/query/SBLCSS (in reply to RCPT TO command)

5

So, at this point you need to go to the URL listed:
http://www,The Spamhaus Project
and request unblocking.

For who knows which, of a multitude of reasons, the IP address from Linode is on a spam list. You may want to check the IP’s against a IP checker to see if there are any other blocks. A site such as DNSBL Information - Spam Database Lookup should help.

6

I’ve tried that, It tells me “That IP address is not listed on the CSS” on both. I should point out, I have no issue sending e-mails to any other address. It only gives me this response if I try to send an e-mail from one domain on one linode to another e-mail on another linode. I.E. I have theoutlawDOTnet and designbuildbrewingDOTcom each having its own linode. I can send e-mail to anyone outside my linodes, and i can send e-mails to any user inside its respective linode. However if I try to send an e-mail from a user at theoutlaw to a user at designbuild it gets kicked back with the message i referenced In the previous reply.

7

Did you follow through with the above advice?

I too checked your IP’s and they appeared clean but keep in mind that any specific checker only confirms with SOME of the various blacklists out there. The one I mentioned specifically does not check the specific block list that you are on.

8

Yea, when I tried to de-list myself spamhaus said my ip is not on their list.

9

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