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SMTP config - receive problems

beskar
Grafter
Posts: 159
Registered: 24-08-2007

SMTP config - receive problems

Hi - have Exchange Server (working as part of SBS2000) on NoNAT service, fixed IPs and I can send but not recieve SMTP mail at the moment. I'm trying to work out whether I might have made a mistake in the config somewhere:

Mail is addressed to my domain, i.e. administrator@me.co.uk.

I don't need to actually host a mail server (just receive mail forwarded on from Plus) so just went to 'MyEmail' and set the SMTP switch 'on', to deliver to an IP ending .138 (the address of my Server). I assume that as I don't want the Exchange box to actually host, I don't need to fiddle with the MX records.

My Plus IP range is .136 to .139 (all PINGable externally) of which .137 is that of the router. (actually, I'm beginning to wonder if I should have set the SMTP to go to .137?)

By the way, I'm using a Fujitsu/Vigor 2200USB combo, and my server is directly visible, no-nat.

As the mail had not appeared, I tried the old finger routine - i.e. finger postmaster@autoturn.plus.net, but got the following msg:
finger: connect :: Host is unreachable
(though I could ping autoturn.plus.net OK)

The other slightly weird thing is that when I nslookup'd my domain me.co.uk, I noticed that 'mail.me.co.uk' had top priority (5) and 'autoturn.plus.net' was 2nd i.e. 10. Would assume that means that if mail can't immediately be piped to 'mail.me.co.uk' it goes to 'autoturn.plus.net'


Any ideas?
2 REPLIES
fonejacker
Grafter
Posts: 382
Registered: 30-07-2007

RE: SMTP config - receive problems

> Any ideas?

Can you telnet to autoturn.plus.net on port 79?

Do you have any firewalls running?

Can you start an SMTP conversation with your exchange server (ie telnet to your IP on port 25 and type 'HELO me.com')?

If you need to know how if there are mails waiting for you on autoturn feel free to raise a ticket to support.

Regards,

Ian Wild
PlusNet Customer Support
beskar
Grafter
Posts: 159
Registered: 24-08-2007

RE: SMTP config - receive problems

Thanks for getting back

- cannot telnet to autoturn.plus.net 79 from the server (get 'connection not found') but this may be due to some telnet restriction in ISA (the server web proxy bit). If I try this from a Win98 machine it does work, bringing up the message '0 messages queued' and then closing.

Q - I know you need the autoturn thing with dialup (actually I seemed to manage without it!) but do you need it with always on ADSL??

> Do you have any firewalls running? < - on the Router, no. ISA sits on SBS server, but port 25 is def open

I can telnet 212.159.xxx.138 and get a response (see below). Bit confused about the HELO syntax, seem to get varying responses!

---------------------------------
Results: telnet to 212.159.xxx.138 from external machine 62.xxx.xxx.xxx
---------------------------------
220 compnm1.sbiz.local Microsoft ESMTP MAIL Service, Version: 5.0.2195.2096 read
y at Tue, 21 May 2002 10:03:51 +0100
helo mydomain.co.uk
250 compnm1.sbiz.local Hello [62.3.xxx.73]
helo myusername.plus.com
501 5.5.4 Invalid Address
helo
250 compnm1.sbiz.local Hello [62.3.xxx.73]
helo mydomain.co.uk
250 compnm1.sbiz.local Hello [62.3.xxx.73]
helo myusername.plus.com
250 compnm1.sbiz.local Hello [62.3.xxx.73]
helo
250 compnm1.sbiz.local Hello [62.3.xxx.73]

----------------------------------------------------Using SamSpade.org:
---
how MYUSERNAME seems to work
---------------------------------------------------------------------------
myusername.plus.com
resolves to
212.159.xxx.138
212.159.xxx.139
212.159.xxx.136
212.159.xxx.137

www.myusername.plus.com resolves to 212.159.8.xxx

Mail for myusername.plus.com is handled by
myusername.plus.com (1) 212.159.xxx.136
212.159.xxx.137
212.159.xxx.138
212.159.xxx.139
autoturn.plus.net.uk (5) 212.159.3.9
mx.last.plus.net (20) 212.159.3.230


-----------------------------------------------------------------------------
how MYDOMAIN seems to work
-----------------------------------------------------------------------------

mydomain.co.uk
resolves to
(no info)

www.mydomain.co.uk resolves to 212.159.8.xxx

Mail for mydomain.co.uk is handled by
mail.mydomain.co.uk (5) 212.56.107.218
autoturn.plus.net.uk (10) 212.159.3.9
mx.last.plus.net (20) 212.159.3.230
mx-c.force9.net (50) 195.166.128.29

ends


>
> If you need to know how if there are mails waiting for you on autoturn feel free to raise a ticket to support.
>
Will do, ta.


> Regards,
>
> Ian Wild
> PlusNet Customer Support