www.ritlabs.com [Topic: Suddenly, one recipient not receiving my e-mails]

Suddenly, one recipient not receiving my e-mails

Fri, 01 Dec 2006 14:42:00 +0200

Suddenly, one recipient not receiving my e-mails in forum The Bat! - Configuring the E-mail Client.
Thanks Rick G, that made me take another look at dnsstuff.

I entered "Office.Staff@gp-L81071.nhs.uk" into DNSreport/Mail Test which gave me "212.137.44.179 [EU]" followed by "Trying to connect to all mailservers:

mail.nhs.uk. - 212.137.44.179 [Could not connect: Got an unknown RCPT TO response: 451 ... Requested mail action not taken: mailbox unavailable]?!?

Looking up 212.137.44.179 gives...

% Information related to '212.137.44.176 - 212.137.44.191'

inetnum: 212.137.44.176 - 212.137.44.191
netname: CW-NHS-NET
descr: Customer NHS
country: GB
admin-c: CHCP1-RIPE
tech-c: CHCP1-RIPE
status: ASSIGNED PA
mnt-by: MNT-HOSTING
changed: *************@cw.com 20050904
changed: *******@cw.net 20060316
source: RIPE

role: CW Hosting Centre Park Royal
address: 900 Coronation Road
address: NW10 7PQ
address: London
e-mail: *************@cwcom.cwplc.com
remarks: trouble: *****@cw.net
admin-c: STEW-RIPE
tech-c: AA3670-RIPE
tech-c: CLAU1-RIPE
tech-c: CHAN2-RIPE
tech-c: SYLV-RIPE
nic-hdl: CHCP1-RIPE
mnt-by: EXODUS-MNT
mnt-by: CW-IPGNOC-MNT
changed: *******@de.cw.net 20041115
source: RIPE
abuse-mailbox: *****@cw.net

% Information related to '212.137.32.0/20AS1273'

route: 212.137.32.0/20
descr: CWC-SWINDONWEBHOST
origin: AS1273
mnt-by: CW-EUROPE-GSOC
changed: *******@de.cw.net 20040312
source: RIPE

Not quite the same as your result?
01 December 2006 14:42:00, Tack Flyer.

Suddenly, one recipient not receiving my e-mails

Thu, 30 Nov 2006 22:41:33 +0200

Suddenly, one recipient not receiving my e-mails in forum The Bat! - Configuring the E-mail Client.
inetnum: 195.99.125.0 - 195.99.127.255
netname: BT-PUBIP-INT
descr: Core PoPs
country: GB
admin-c: BS1474-RIPE
tech-c: BS1474-RIPE
status: ASSIGNED PA
remarks: Please send abuse notification to *****@bt.net
remarks: INFRA-AW
mnt-by: BTNET-MNT
mnt-lower: BTNET-MNT
mnt-routes: BTNET-MNT
changed: **************@bt.com 20030912
source: RIPE

role: BTnet Support
address: 154 St Albans Rd
address: Sandridge
address: St Albans
address: Hertfordshire
address: AL4 9NH
address: GB
phone: +44 800 699879
phone: +44 207 555 3115
e-mail: *************@bt.net
admin-c: FLS15-RIPE
tech-c: BS1474-RIPE
nic-hdl: BS1474-RIPE
remarks: For all queries contact *************@bt.net
mnt-by: BTNET-MNT
changed: **************@bt.com 20010613
changed: *******@bt.net 20011112
changed: **************@bt.com 20020430
source: RIPE

30 November 2006 22:41:33, Rick G.

Suddenly, one recipient not receiving my e-mails

Thu, 30 Nov 2006 22:12:29 +0200

Suddenly, one recipient not receiving my e-mails in forum The Bat! - Configuring the E-mail Client.
dnsstuff was the first thing I tried, but entering the domain part of the e-maill address, "gp-L81071.nhs.uk", just results in an error.
30 November 2006 22:12:29, Tack Flyer.

Suddenly, one recipient not receiving my e-mails

Thu, 30 Nov 2006 21:15:50 +0200

Suddenly, one recipient not receiving my e-mails in forum The Bat! - Configuring the E-mail Client.
Get their domain name and look it up at
http://www.dnsstuff.com/
one of many places that you can find it out. If it happens to be anonymous there will be an email address that will go through the anonymous registration site
30 November 2006 21:15:50, Rick G.

Suddenly, one recipient not receiving my e-mails

Thu, 30 Nov 2006 19:38:19 +0200

Suddenly, one recipient not receiving my e-mails in forum The Bat! - Configuring the E-mail Client.
Thanks for your reply Roelof.

The contact in question is my Doctor's surgery, and unfortunately the staff there have no idea how to advise me; they can't or won't tell me who their ISP is or who their system admistrator is.

Regarding "Uncheck 'Use X-Mailer header in messages', this is already unchecked and has been as long as I remember; could this all-of-a-sudden be the problem for some reason?
30 November 2006 19:38:19, Tack Flyer.

Suddenly, one recipient not receiving my e-mails

Thu, 30 Nov 2006 18:59:52 +0200

Suddenly, one recipient not receiving my e-mails in forum The Bat! - Configuring the E-mail Client.
It is possible that your contact's ISP is blocking messages sent by TB.
The best way to check whether this is the case is to disable TB's X-Mailer header, you can do this via:
Options -> Preferences -> General -> Uncheck 'Use X-Mailer header in messages (for administrative purposes)'
30 November 2006 18:59:52, Roelof Otten.

Suddenly, one recipient not receiving my e-mails

Thu, 30 Nov 2006 18:50:02 +0200

Suddenly, one recipient not receiving my e-mails in forum The Bat! - Configuring the E-mail Client.
For years I have used TB as my preferred client.

Recently, one particular recipient I regularly send e-mails to has stopped receiving them. I no longer receive a delivery receipt, no error messages get generated and when phoning the recipient, they confirm that no email has been received from me.

I had read somewhere, a long while back, that some ISP's mail servers block e-mail from TB users. As there is no problem sending mail to this recipient using my ISP's webmail client, could it be that they've started blocking e-mail from TB?

Thanks for any advice.
30 November 2006 18:50:02, Tack Flyer.