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Cisco PIX 501 and MS Exchange 5.5

Hello, i have i client that im experiencing the following thing.

I have now set up a adsl solution with a fixed ip adress 213.145.234.21 and since that has been
implementet they cannot recive email anymore, they are able to send via the exchange server.

Before the adsl they had a dialup isdn connection.

The company that host their domain has set up their routers to forward all emails to the 213.145.234.21 ip adress.

What do i do on the exchange server and/or on the pix so that they are able to recive email again?

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Tim Holman

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Tim Holman

If you run into problems, post up your config.. ;)

Les Moore

There are several things that are necessary.
1. Proper MX Records for mail server redirect in primary DNS server. Go to http://www.dnsreport.com and put in the domain to check
2. Proper static nat map on the PIX as tim has demonstrated. Use either 1-1 static NAT or static Port map as tim demonstrates
3. Proper inbound access-list (or conduit) to permit the inbound traffic
4. Disable fixup for smtp:
no fixup protocol smtp 25

hawgpig

assuming that you posted the correct ip address....for your mail server.....i took a look at your port 25 and it shows open.....So the server looks like it is listening.....However I checked with www.dslreport.com and it sayes that the address is not a mail server which means that your ISP hasen't changed over your e-mail address to reflect the current ip address yet. Try this yourself.
Also doing an NSlookup on your ip address does not show your domain.....Your ISP is probably your issue...
Good Luck

daxa78

ASKER

Thanks so much for the help. Made my day. Have a good one