Topic: BT UK Changed something - now Email undelivered!

[gbentley]

Just today after having same mail settings for SME for years...

from qmail log :-

Remote_host_said:_451_Upstream_SMTP_server_not_available

and a few other tests at the cli :-

[root@smsf qmail]# host smtp.btconnect.com
smtp.btconnect.com is an alias for obmr.btconnect.com.
obmr.btconnect.com has address 213.123.20.93

[root@smsf qmail]# ping smtp.btconnect.com
PING obmr.btconnect.com (213.123.26.152) 56(84) bytes of data.
64 bytes from obmr.btconnect.com (213.123.26.152): icmp_seq=1 ttl=51 time=23.6 ms

[root@smsf qmail]# ping obmr.btconnect.com
PING obmr.btconnect.com (213.123.20.93) 56(84) bytes of data.
64 bytes from obmr.btconnect.com (213.123.20.93): icmp_seq=1 ttl=51 time=23.9 ms

[root@smsf qmail]# telnet smtp.btconnect.com 25
Trying 213.123.20.93...
Connected to smtp.btconnect.com.
Escape character is '^]'.
554 Mail from 217.41.30.65 refused, see RBL server rbl.btconnect.com
Connection closed by foreign host.

[root@smsf qmail]# telnet smtp.btconnect.com 587
Trying 213.123.20.93...

<this just hangs...>

A desktop mail client test sends email immediately - any tips on how to track this further?

TIA!

[janet]

gbentley

A desktop mail client test sends email immediately - any tips on how to track this further?

Use the same settings on your server that you are using on your workstation client

.....after having same mail settings for SME for years...

If you tell us the settings it would help.

Sounds like bt are not trusting your server or the credibility of your main domain name.

Do you send directly to other mail servers ?
or
do you send your mail via bt's smtp mail server ?
ie do have your ISP's mail server set for the outgoing mail server, in server manager Email panel (referred to as SmartHost IIRC).

Remote_host_said:_451_Upstream_SMTP_server_not_available

That's the clue, & the best people to ask are bt,

[gbentley]

> Use the same settings on your server that you are using on your workstation client

I am - only, I am at my remote office. I just got remote into a desktop and the workstation client at the main office is also chucking up errors also - should of checked before posting.

Will update when I get any info.

(BT are supposed to be calling me back before 11)

[gbentley]

BT support could not comment on the issue of why even Outlook would not send even though its up to the latest service pack / ssl etc

The only one thing they have done is send an email via our account on their servers and therefore suggested its down to us!

Amazing conclusion. During the conversation I asserted that in over 8 years of using SME and in all the experiences I have had with BT it has never been a fault with SME. A very common scenario is that BT do not ever admit to any problems with their systems. In some cases, within 15 minutes of putting in a fault call with BT, everything 'just works' - but its never to do with them!

Time for sleep!

[CharlieBrady]

http://answers.microsoft.com/en-us/windows/forum/windows_xp-networking/my-emails-have-been-working-fine-up-until-a-few/bb886d1a-1172-40e6-b870-1d894aafb232

...
Server Response: 554 Mail from 80.42.232.176 refused, see RBL server rbl.btconnect.com
...

contact BTConnect. They have blacklisted you and only they can fix it.

...


Sound familiar?

When you contact them, don't tell them this (which is from SME's smtp-auth-proxy, which they won't know anything about):

Remote_host_said:_451_Upstream_SMTP_server_not_available

Tell them about this:

554 Mail from 217.41.30.65 refused, see RBL server rbl.btconnect.com

which is from their server.

[gbentley]

Thanks for tip Charlie - I should have checked for the above first because we have had exactly that issue in the past [WinZombie on same netblock tars you with same brush]

I just used this tool ;

http://mxtoolbox.com/blacklists.aspx - and the office IP address and unfortunatly gets all green status.

We also had a bizarre issue in the past with DNS and a data port reset at the exchange sorted it. In conversation with BT I asked if logs where available from the server with have been relaying with for years [mail.btconnect.com] and was told that its only in cases where we have a provable fault that this would be escalated / they would look into it.

Last night wasted a lot of time on their say so, downloading a service pack for Outlook and after doing so checked the version numbers myself and we already where up to sp2 [which the guy then admitted]

As it is now I have tested two different wintop mailclients which refuse to send and give errors messages [using the same server details that work from my office and the ISP office], a server that refuses to send and gives error messages and an ISP who says we have to prove the fault lol!

[janet]

gbentley

You did not answer the earlier questions
Do you send directly to other mail servers ?
or
do you send your mail via bt's smtp mail server ?
ie do have your ISP's mail server set for the outgoing mail server, in server manager Email panel (referred to as SmartHost IIRC).

This can easily & accurately answered by showing output of
config show SMTPSmartHost

PS Did you tell them what Charlie said to tell them (ie they have your IP on their RBL list & only they can remove it, usually)
Tell them about this:
554 Mail from 217.41.30.65 refused, see RBL server rbl.btconnect.com

[gbentley]

> do you send your mail via bt's smtp mail server ?

yes

I just saw the addition - thanks. I am now going into the office to ammend the router to a different un/pw to acquire a different IP [we are on fixed and the router will not let you make changes to that setting whilst there is a live connection]

Once we have a different IP will retest and see what happens. I have the number of what they used to call the 'Abuse Team' [0808 1004332] which they have renamed. I have got this strong suspicion that Charlie and yourself are right on this and BT will have blocked us. Will let you know!