Do two portforward rules translate to "and"?

Posted by blsub6 on Server Fault See other posts from Server Fault or by blsub6
Published on 2010-12-31T20:50:02Z Indexed on 2010/12/31 20:55 UTC
Read the original article Hit count: 269

Filed under:

smtp

|

windows-server-2008-r2

|

exchange-2010

|

port-forwarding

I just set up an Exchange server to replace my DeskNow mail server. I want to start testing my internet mail exchange of my Exchange server. I can only set the MX records on my DNS up to my one external IP address so I was thinking that I could set up a firewall rule on my internet-facing firewall that port forwarded the smtp packets to two different servers.

My question is: If I do that, will that mean that the smtp packets will be forwarded to just the first internal IP on the list? Or does it mean that the packet will be cloned and sent to both IPs?

© Server Fault or respective owner

Related posts about smtp

JavaMail not sending Subject or From under jetty:run-war

as seen on Stack Overflow - Search for 'Stack Overflow'
Has anyone seen JavaMail not sending proper MimeMessages to an SMTP server, depending on how the JVM in started? At the end of the day, I can't send JavaMail SMTP messages with Subject: or From: fields, and it appears other headers are missing, only when running the app as a war. The web project… >>> More
Gmail smtp, Blackberry, BB, socketConnection, send email via gmail smtp programmatically

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello! Somebody can help me how can i use the gmail smtp server programmatically via socketConnection. My question is how i can write write a TSL/SSL authentication because i can`t communicate with the server?? Somebody did it from java on blackberry ? Thank You Alex >>> More
How to resovle javax.mail.AuthenticationFailedException issue?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am doing a sendMail Servlet with JavaMail. I have javax.mail.AuthenticationFailedException on my output. Can anyone please help me out? Thanks. sendMailServlet code: try { String host = "smtp.gmail.com"; String from = "[email protected]"; String pass = "pass"; Properties… >>> More
Debugging Messaging Exception

as seen on Stack Overflow - Search for 'Stack Overflow'
We have a batch program that incorporates JavaMail 1.2 that sends emails. In our development environment, we haven't got the chance to encounter the above mentioned exception. But in the client's environment, they had experienced this a lot of times with the following error trace: javax.mail.MessagingException:… >>> More
Postfix Submission port issue

as seen on Server Fault - Search for 'Server Fault'
I have setup postfix+mailman on my debian server and i have an issue with postfix submission port. My ISP blocks SMTP on port 25 to prevent *spams and i must to use submission port (587). I have uncomment the following line from master.cf (/etc/postfix/) but nothing happens. submission inet… >>> More

Related posts about windows-server-2008-r2

Cannot enable network discovery on Windows Server 2008 R2

as seen on Server Fault - Search for 'Server Fault'
I'm trying to enable the Network Discovery feature on a newly installed Windows Server 2008 R2 instance. The network connection is in the Home or Work profile (it is not domain joined). These are the steps I've followed: Within the Network and Sharing Center I select Change advanced sharing settings Then… >>> More
Windows Server 2008 R2: AD Module for Windows PowerShell

as seen on Internet.com - Search for 'Internet.com'
Windows Server 2008 R2 includes a new Active Directory module for Windows PowerShell, a consolidated group of 76 cmdlets that can perform a host of tasks against Active Directory's various services. >>> More
Windows Server 2008 R2: Introducing the AD Administrative Center

as seen on Internet.com - Search for 'Internet.com'
The Active Directory Administrative Center in Windows Server 2008 R2 is a significant improvement over its predecessor. Although not without limitations, it offers beefed-up management of AD objects, new navigation capabilities, better task-based management options, and improvements to the properties… >>> More
Sun Fire X4270 M3 SAP Enhancement Package 4 for SAP ERP 6.0 (Unicode) Two-Tier Standard Sales and Distribution (SD) Benchmark

as seen on Oracle Blogs - Search for 'Oracle Blogs'
Oracle's Sun Fire X4270 M3 server achieved 8,320 SAP SD Benchmark users running SAP enhancement package 4 for SAP ERP 6.0 with unicode software using Oracle Database 11g and Oracle Solaris 10. The Sun Fire X4270 M3 server using Oracle Database 11g and Oracle Solaris 10… >>> More
Now Customers Can Actually Locate Your Resources with URL Rewriter 2.0 RTW

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Today, Microsoft announced the final release of IIS URL Rewriter 2.0 RTW . Now the first reason might be obvious why you would want to rewrite a URL – when you are at a cocktail party with loud music and tasty appetizers and a potential customer asks you where they can get more info on your snazzy… >>> More