Exchange Server Relay

Hi EEs,

My HQ office is hosted with MS Exchange 2010 with blocking all incoming ports, excepts 21(ftp) & 80(http) so we are having our outlook configured with rcp over http (attached screen short as well)

Now we have to configure some printers & server which can comunicate to exchange server to send some auto gentated emails to us using exchange server but as all servers & printers need to be configured with smtp address of exchange which not being accessable....

kindly advice if we can host any in-house small apps which can send email on behalf of our exchange server something like ... Excahnge-Relay...

Do let me know if you need any other information of my setup..

kindly advice any work around solution

thanks in advance...
OutlookConfirs.jpg
dxbdxb2009Asked:
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Simon Butler (Sembee)ConsultantCommented:
With that port blocked, your options are limited. If you get could something on the other side of the firewall block then you could route email over HTTPS port, but with the configuration you currently have, I don't think anything is going to be possible. If there is a business need then the port needs to be opened.

Simon.
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dxbdxb2009Author Commented:
@Sembee2: thanks for your reply,

can you pls advice any solution something like ISA which can solve my issue...

thanks in advance.....
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dxbdxb2009Author Commented:
anyone pls advice any workaround...
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Simon Butler (Sembee)ConsultantCommented:
I don't know how ISA is going to help. If the ports are blocked, then you are going to be out of luck. The world operates on port 25 for email - if they are blocking the ports there is nothing you can do about it.

Simon.
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dxbdxb2009Author Commented:
Thanks Sembee2 for your reply & apologies for my delay responds,

Can you advice me...if I host a exchange server 2010 in my branch office then:

1. which all ports my HQ office has to open for exchange communication?
2. does I really need to have Lease Line or we can just run our exchange on ADSL/DSL internet Line (we don't have any static IP with our existing connection)
3. Does I have to join my exchange server into my HQ office's exchange domain(MyyHQ.com) as we are have some other domain name( MyBO.com)

Kindly advice what all best possible solution so I can advice my management to host in-house Exchange server.

Many thanks in advance..
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Simon Butler (Sembee)ConsultantCommented:
To communicate with another Exchange server in a different AD forest, then you need port 25 at least, because it will operate as an independent server. However if you are in the same AD forest then you cannot just setup your own server, because Exchange operates at the forest level. Port blocking between locations in that scenario is not supported by Microsoft.

You can run Exchange off an ADSL line, but you will need a static IP address.

Simon.
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dxbdxb2009Author Commented:
thanks again Simon,
my branch office is not into same domain(myBO.local) as my HQ(myHQ.com) is in some other domain, (we have configure our outlook to access emails with outlook proxy with exchange (something like RPC over HTTP)
Kindly advice:
1. how can I add my exchange which should connect/act as relay to receive/send emails from our HQ exchange server
2.  can i configure my dynamic IP with No-IP.org's hostname so I can configure my Branch Office Exchange to communicate with HQ Exchange..(can I configure my exchange to work with DDNS like Dyndns/No-IP.org)

Awaiting for your valuable advice/help.

thanks in advance...
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Simon Butler (Sembee)ConsultantCommented:
By domain do you mean WINDOWS domain, or SMTP domain?
Are you in the same Forest?

You cannot really use another independent Exchange server with another one. That simply doesn't work. Your best option is to get email directed straight to your server, and then treat the other site as any other external server.

If the ports are limited though, you still aren't going to get anyway - as I have already said, this is not something that you can do on your own - the other location have to be cooperative for it to work. If not then you are going to be unable to do anything.

Simon.
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dxbdxb2009Author Commented:
Hi Simon,

Domain = SMTP domain

Pls explain this with example = "Your best option is to get email directed straight to your server, and then treat the other site as any other external server "

My HQ is ready to open the port I need...

kindly advice if I can host something like "Exchange relay" in my Branch office for which all internal emails are first received & send to my in-house exchange relay then should go to my HQ Exchange server....or something like this..

Pls advice the suitable solution  to work around...

many thanks in advance..
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Simon Butler (Sembee)ConsultantCommented:
I think your question has become too complex to answer on this forum. You need to engage a consultant to design a solution working with the other office.

Simon.
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dxbdxb2009Author Commented:
Yes..you are correct...I shell close & reopen it...
thanks to all ...
Once I reopen it will post the new link here for your expert to advice...
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