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Home > Forums > Member Moderated > Tek-Tips Groups > Information Security Group Forum

PIX Firewall and Microsoft Exchange

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King2004 (IS/IT--Management)

28 Jun 04 11:57

Hi all,
I have installed Microsoft Exchange 2003 in two locations, the two sites are connected with cisco routers (without NAT); The architecture contains replication between Microsoft domain controllers ...I can send and receive mails from and to the two sites. I have integrated Cisco PIXes (version 6.3(3), (with NAT 0 and Static for the same addresses) , the replication between the DC works very well but i can't send and receive emails from the two sites (i haven't restrictions: permit ip any any on the two pixes).*
I know that pix has problems with exchange, because exchange uses ESMTP so i disable the fixup smtp to not inspect it; but no function also.
The problem is in the return traffic from outside to inside ... there's no deny when debugging but just teardown...
Any help.
thanks.

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