User account problem, errors when sending email?

[bluecity]

Hi there,

One of my users is currently having a problem when sending emails via his account.

The error message he gets when he attempts to send email is as follows:

Verification failed for <<email>>
550 – Unrouteable address
550 – Sender Verify failed

Also during testing when I try to send an email to the account I get the following message:

An error occurred while sending mail. The mail server responded: “The recipient cannot be verified. Please check all recipients of this message to verify that they are valid”

Now it appears to be some sort of routing problem, but when I looked over the DNS settings everything was as it should be.

It appears the client has only just started getting these messages. No one else on the same server appears to be having these problems.

Just to add, the account has been reinstalled, this has not fixed the problem.

Does anyone have any suggestion on what I could do to resolve this?

The Visual Mail Trouble-shooter shows the address as un-routable.

Thanks

[chirpy]

It does indeed sound like a DNS resolution problem on the server. If you login via shell and do a:

dig domain.com mx

Where domain.com is the domain they are sending to, it should resolve properly. If not, you need to fix the entries you have in /etc/resolv.conf

Also, it's always best to post the errors that occur when sending email from the exim mail log which is /var/log/exim_mainlog on Linux OS's.

[bluecity]

Thank you for the advice.

I will do that now and get back to you.

[bluecity]

Well after using dig here is the results it gave back.
---
dig bignokias.com

; <<>> DiG 9.2.1 <<>> bignokias.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 23798
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;bignokias.com. IN A

;; ANSWER SECTION:
bignokias.com. 14400 IN A 209.8.23.135

;; Query time: 88 msec
;; SERVER: 63.216.0.5#53(63.216.0.5)
;; WHEN: Tue Aug 23 16:03:22 2005
;; MSG SIZE rcvd: 47
---

So it appears to resolve ok.

Also after looking through the log file as you suggested, the following errors seems to keep occuring:

2005-08-23 14:14:52 1E7Yc7-0008Dk-Rg <= info@bignokias.com H=82-38-129-19.cable.ubr02.hali.blueyonder.co.uk (martin) [82.38.129.19] P=esmtp S=2062
2005-08-23 14:14:52 1E7Yc8-0008Dl-3K <= webmaster@bignokias.com H=82-38-129-19.cable.ubr02.hali.blueyonder.co.uk (martin) [82.38.129.19] P=esmtp S=2076
2005-08-23 14:14:52 1E7Yc8-0008Dl-3K ** mfozard@byonder.com R=lookuphost T=remote_smtp: SMTP error from remote mail server after RCPT TO:<mfozard@byonder.com>: host byonder.com [204.157.9.142]: 550-Verification failed for <webmaster@bignokias.com>\n550-Unrouteable address\n550 Sender verify failed
2005-08-23 14:14:52 1E7Yc8-0008Ns-Oi <= <> R=1E7Yc8-0008Dl-3K U=mailnull P=local S=3145
2005-08-23 14:14:52 1E7Yc8-0008Dl-3K Completed

[aby]

Did you check /etc/resolv.conf as Chipy has suggested.

I assume the domain does have entry in /etc/localdomains


/scripts/reseteximtodefaults seems to have helped someone previiously. So worth a try.

Also

/scritps/updatenow
/scripts/eximup --force

[bluecity]

Yes the resolv.conf appears to be fine.

Also running the scripts you suggested didnt make a diffrence, the problem is still occuring!

However it seems to send email to the gmail server(s), so I guess it could be some sort of glitch, im going to wait 24 hours or so just to see if it sorts itself out.

Thanks for all your help.

Also if anyone else has any more suggestions then please post