Re: Smtp not working for one of the child domains

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance



thanks for your help, i tried that & here what i got

220 merciadc.Mercia.IAM.loc Microsoft ESMTP MAIL Service, Version:
6.0.3790.1830
ready at Wed, 4 Oct 2006 11:16:06 +0100
hello
500 5.3.3 Unrecognized command
helo
250 merciadc.Mercia.IAM.loc Hello [192.168.85.10]
mail from:<user>@merciaif.co.uk
250 2.1.0 <user>@merciaif.co.uk....Sender OK
rcpt to:<user>@hotmail.com
501 5.5.4 Invalid Address
rcpt to:<user>@yahoo.com
501 5.5.4 Unrecognized parameter to:<user>@yahoo.com
rcpt ?
501 5.5.4 Unrecognized parameter ?
rcpt to: <user>@yahoo.com
500 5.3.3 Unrecognized command
rcpt to:<user>@yahoo.com
501 5.5.4 Unrecognized parameter to:<user>@yahoo.com

so please what fo you think is wrong here??

all help apperciated
--
M William


"Henrik Sjöström" wrote:

Fails for all external domain?
If not, might someone have added a SP record, and failed to include this
server in the list of approved servers, and thus that server is rejected for
those external domains that have also configured SPF?

If all, firewall issues?
Can you for example manually telnet to a remote host on port 25 (SMTP)?

telnet.exe <remote host> 25
helo
mail from:user@xxxxxxxxxxxxxx
rcpt to:user@xxxxxxxxxxxxxxxx
data
Hello.
This is a test
..

// Henrik



"Int'l Aromatics" <IntlAromatics@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:10625296-1194-4CCC-A4BD-BF3E58EC0B48@xxxxxxxxxxxxxxxx
Hi, we have a network with 4 sites, a parnet & 3 child domains, all worked
fine, until, 2 weeks agon, when one of the child domains, began to fail on
sending emails, while the others didn't face any problems, also what more
puzzling is that it can send & recieve emails from local users, but send
only
to local user & not outside.

it was working & nothing changed, i tried smtpdiag.exe & everything looks
fine, can any body help, please, thanks
--
M William



.



Relevant Pages

  • Re: need help testing email servers
    ... script which will ssh to each server, and run a telnet 25. ... to manually enter the helo, mail from, rcpt to, and data. ...
    (perl.beginners)
  • Re: Relay operation rejected ASAP!
    ... 220 tagasapot.tclwebmail ESMTP Server (Microsoft Exchange Internet ... rcpt to: administrator@tcl.com.ph ... The only difference is the mail server software. ...
    (microsoft.public.exchange.admin)
  • RE: Unable to send mail to external domain
    ... I tried sending to that email address from my exchange server and got the ... > telnet into the recipient mail server I have recieved this output 220 ... > helo sbasite.com ... > rcpt to: hcarr@tcigroup.com ...
    (microsoft.public.exchange.admin)
  • Re: Can anyone identify this possible backdoor?
    ... > Investigating a machine which is spewing SoBig.F and may be compromised, ... >> Unrecognized command or Invalid argument received ... The second time I connected, I typed 'helo' and hit 'return', at ...
    (Incidents)
  • Re: Weird 554 message in Exchange 2007 Message Tracker
    ... The way to know would be to turn on SMTP protocol logging and send the message again. ... exchange server is removing the originators e-mail address as the "Mail ... helo myworkpc.net ... 503 RCPT TO without MAIL FROM ...
    (microsoft.public.exchange.admin)