Re: Email stuck - changed ISP, please help

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Sorted.. I wrote the original post while at home, once at work I rang the ISP
and they block, by default, ports 25, 80 and 443 for security. Great for Joe
User, not so great for businesses.

Thanks for your help

Terry

"aus" wrote:

> Sending and receiveing dont necesarily use the same paths so each may be
> an independant issue. Are you sending your mail directly ('send using
> DNS' option)or are you forwarding all outbound mail to your ISPs mail
> forwarder (smart host)?
>
> If its the latter then this smarthost IP would have to be changed to the
> IP of your new ISP, unless you already did that. If you send directly
> using DNS (which I normally use) then its an Exchange config issue - but
> probably not DNS related as you can browse ok - confirm this by
> telnetting out to any mail server in the world and see that it says
> hello (e.g. 'telnet mail.bbc.co.uk 25')
>
> As you are not receiving mail have you checked your MX record in your
> DNS setup? (use NSLOOKUP or any web based tool to check your server is
> listed). Sometimes the mail record is an optional extra for ISPs and you
> have to request it gets dealt with.
>
> If this is definitely correctly set then you need to confirm your
> firewall is really forwarding on port 25 - just repeat the above Telnet
> on any external PC to your SBS box and see that Exchange waves back. If
> it works on its real world IP (check what this is in the router status
> page if its dynamic) but not with the full mail server domain name then
> its probably the DNS stuff.
>
> Some ISPs do require an authenticated connection to send mail via them -
> you can enter the details in the SMTP virtual server connector details.
>
>
>
> Bucket wrote:
> > Hi all. I have just changed from this pre-existing and working configuration -
> > SBS with Dual Nics, Cable Internet plugging directly into one NIC, internal
> > software firewall then LAN NIC to the internal network. Exchange configured
> > and working as SMTP with POP3 connector (separate account).
> >
> > New configuration
> > SBS with single NIC (disabled the 2nd NIC), Netgear 834 router firewall,
> > configured to allow port 25, 4125, 3389, 80, 443 and the PPTP port to be
> > forwarded straight to server. Outbound services are - any service - allow
> > always, any lan user and any WAN Server.
> >
> > Now using ADSL - Australian company called iiNet, instead of Cable Internet
> > (Bigpond) - ran the router wizard for physical connection and then ran the
> > SBS Internet and Mail wizard twice, second time included UPNP on the Router.
> >
> > All client machines have internet. I have perfect surfing capability and my
> > POP3 connector is bringing and delivering mail to correct mailbox. I use
> > Dynamic DNS but I have confirmed the DNS records are updated with the new
> > details.
> >
> > All outgoing mail and incoming SMTP mail is stuck. I have 4 SMTP connector
> > queues holding all the mail ready for delivery to the external recipient.
> > These appear as 4 separate SMTP Connectors, one for each ISP, in the queues
> > section. I can't even receive email to my server from an external source
> > (hotmail).
> >
> > Could the issue be ISP related, some ISPs block port 25, but if they did
> > would that stop my SMTP delivery and receiving? I thought that with SBS the
> > Internet connection would avoid the SMTP through the ISP.
> >
> > Please help ASAP.
> >
> > Thanks in advance,
> >
> > Terry
>
.

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