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Unknown address error

knappettg
Dabbler
Posts: 11
Registered: 10-06-2009

Unknown address error

Hello
I have registered a new domain and now have two domains and my usual account.
Emails go to and from my usual account and my first domain OK.
I can send email using the new new domain name - but emails to the new domain name are returned saying
5.1.0 - Unknown address error 550-'#5.1.0 Address rejected ****@********.co.uk'
yet the set up mirrors the first domain name.
What could be wrong?
Geoff
10 REPLIES
Community Gaffer
Community Gaffer
Posts: 13,289
Thanks: 1,063
Fixes: 86
Registered: 04-04-2007

Re: Unknown address error

Sounds like DNS hasn't propagated yet. When did you register the domain? Have you raised a support ticket?

Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵

knappettg
Dabbler
Posts: 11
Registered: 10-06-2009

Re: Unknown address error

Registration came through on Friday.
Am I being too impatient?
Community Gaffer
Community Gaffer
Posts: 13,289
Thanks: 1,063
Fixes: 86
Registered: 04-04-2007

Re: Unknown address error

Ccan take 24-48 hours for DNS to fully propagate so maybe. How are things looking now?

Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵

knappettg
Dabbler
Posts: 11
Registered: 10-06-2009

Re: Unknown address error

Not good.
I logged a ticket and have now been told twice that it had been sorted.
It hasn't.
It has now been suggested that I create a new mailbox - but surely that is not the problem.
I have catch all turned on, so anything that goes to "newdomain.co.uk" should be picked up by "username@plus.net".
It seems that "newdomain.co.uk" is not being picked up as part of "username@plus.net"
Or am I missing something?
Geoff
Community Veteran
Posts: 26,686
Thanks: 910
Fixes: 10
Registered: 10-04-2007

Re: Unknown address error

mailbox@plus.net are Plusnet staff email addresses.
I think you meant catchallmailbox@username.plus.com!
jelv (a.k.a Spoon Whittler)
   Why I have left Plusnet (warning: long post!)   
Broadband: Andrews & Arnold Home::1 (FTTC 80/20)
Line rental: Pulse 8 Home Line Rental (£13/month)
Mobile: iD mobile (£4/month)
knappettg
Dabbler
Posts: 11
Registered: 10-06-2009

Re: Unknown address error

Jelv
You are right. I got confused as I was trying to anonymise my address!
I've corrected my e-mail below.
Geoff
Not good.
I logged a ticket and have now been told twice that it had been sorted.
It hasn't.
It has now been suggested that I create a new mailbox - but surely that is not the problem.
I have catch all turned on, so anything that goes to "newdomain.co.uk" should be picked up by "whatever@username.plus.com".
It seems that "newdomain.co.uk" is not being picked up as part of "whatever@username.plus.com"
Or am I missing something?
Geoff
Community Gaffer
Community Gaffer
Posts: 13,289
Thanks: 1,063
Fixes: 86
Registered: 04-04-2007

Re: Unknown address error

Quote from: knappettg
I logged a ticket and have now been told twice that it had been sorted.
It hasn't.

I'm struggling to see what the problem is here if I'm honest with you
I've checked the entries in our mail database and they all exist for your newly registered domain (2 aliases, a mailbox and a catch-all). I've also checked that the domain returns valid mail exchanger records when querying ours and a third party's caching DNS servers:
dig <domain_removed_for_privacy> mx @8.8.8.8
;; QUESTION SECTION:
<domain_removed_for_privacy>            IN      MX
;; ANSWER SECTION:
<domain_removed_for_privacy>    14400  IN      MX      20 mx-ironport.last.plus.net.
<domain_removed_for_privacy>    14400  IN      MX      10 mx-ironport.core.plus.net.

bpullen@pvs-csctools:~$ dig  <domain_removed_for_privacy> mx @212.159.6.9
;; QUESTION SECTION:
<domain_removed_for_privacy>          IN      MX
;; ANSWER SECTION:
<domain_removed_for_privacy>    14400  IN      MX      20 mx-ironport.last.plus.net.
<domain_removed_for_privacy>    14400  IN      MX      10 mx-ironport.core.plus.net.

These mail exchangers also accept email for your domain:
bpullen@pvs-csctools:~$ telnet mx-ironport.core.plus.net 25
Trying 84.92.1.65...
Connected to mx-ironport.core.plus.net.
Escape character is '^]'.
220 mx.pcl-ipin04.plus.net ESMTP
ehlo ip
250-mx.pcl-ipin04.plus.net
250-8BITMIME
250 SIZE 104857600
mail from:<>
250 sender <> ok
rcpt to:<postmaster@ <domain_removed_for_privacy>>
250 recipient <postmaster@ <domain_removed_for_privacy>> ok
data
354 go ahead
subject:test
this is a test message from support, please ignore
.
250 ok:  Message 347990885 accepted
quit
221 mx.pcl-ipin04.plus.net

I've sent an email to postmaster@<domain_removed_for_privacy> via both Plusnet's relay servers and a none-Plusnet mail server. Both messages have arrivd intact in your inbox?
Are you only having problems when you try sending to the address from work? If so, do you know what DNS addresses you're using there?

Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵

knappettg
Dabbler
Posts: 11
Registered: 10-06-2009

Re: Unknown address error

Whoever did whatever has fixed it.
All is working now.
Thanks.
Geoff
Community Gaffer
Community Gaffer
Posts: 13,289
Thanks: 1,063
Fixes: 86
Registered: 04-04-2007

Re: Unknown address error

Glad to hear it Geoff! Smiley

Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵

Community Veteran
Posts: 26,686
Thanks: 910
Fixes: 10
Registered: 10-04-2007

Re: Unknown address error

Incidentally, to do the checks Bob did on windows it's
nslookup -type=mx domainname
That will use the default DNS servers on your PC. To check if a specific DNS server has the same answers you add the IP address of the DNS server to the end.
E.g. using the Google DNS server
C:\Documents and Settings\John>nslookup -type=mx bbc.co.uk 8.8.4.4
Server:  google-public-dns-b.google.com
Address:  8.8.4.4
Non-authoritative answer:
bbc.co.uk      MX preference = 20, mail exchanger = cluster1a.eu.messagelabs.com
bbc.co.uk      MX preference = 10, mail exchanger = cluster1.eu.messagelabs.com

This is the best way to check if a DNS change is propagating.
jelv (a.k.a Spoon Whittler)
   Why I have left Plusnet (warning: long post!)   
Broadband: Andrews & Arnold Home::1 (FTTC 80/20)
Line rental: Pulse 8 Home Line Rental (£13/month)
Mobile: iD mobile (£4/month)