Forwarding mail from external OSX 10.3 to internal OS 10.4 postfix server?

I have set up an internal postfix server and an external postfix server.
The internal server is up and running sending messages to all the internal users.
And the internal users are able to send email to the Internet.
And those message are being relayed through the external server.
Also I have opened the smtp port in the gateway between the two machines.
And the MX record points to the external server.
But I'm having a problem receiving mail. It seems that the external server is receiving mail but not relaying it to the internal server.
I still have "mydestination" set to mydomain.com on the external server.
I'm not certain if this is the main reason why the mail hangs or if this value needs to remain in place after I start using the external server as a relay. But then again I also have to tell the external server where to relay all incoming mail.
I was wondering if the following would make sense:
Remove the mydestination parameter
set up a "relay_domains = mydomain.com"
set up a "transport_maps =hash:/etc/postfix/transport"
and then add "mydomain.com relay:[gw.mydomain.com]"
to the transport file?
Is this the correct method or should I take a different approach?
TIA
Hans

This episode has tought me that information found on
the internet is not always correct.
Quite often the problem is not always incorrect information, but also the fact that postfix can be configured in many different ways. Considering however the way OS X is "pre-configured", solutions which are fine for a "plain-vanilla" postfix install will not necessarily work without modification on OS X.
The sad thing is
I had looked at the postfix homepage but overlooked
the information you pointed me to.
Happens to me all the time
I do have a question though...
When naming my two servers, can I use any names that
comply to hostname.mydomain.com or do I need to use
mail.mydomain.com for the external server?
You are free to use any FQDN you wish as long as the MX record reflects it.
mail.domain.tld is often used because it is easy for users to remember when configuring smtp/pop/imap. It is however only a convention/habit like www. is for websites.
Have fun,
Alex

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For some users, I need to forward emails to their personal address.
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I spent several hours on this but I found the perfect solution to forward to external and internal emails.
In my case, I needed to forward to more the one external email (This applies to Exchange 2013):
Here is how:
Using the EAC,
1) Make sure that ENABLE FORWARDING is unselected under the delivery options in mailbox features for your particular user.
2) Create all the External Contacts you need to forward in the CONTACTS tab in RECIPIENTS.
3) Create a group in the GROUPS tab, give it a meaningful Display name, and for ALIAS, make sure it is
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You will need this email later to us in the SHELL for the last step.
Further down, under members, click on the plus sign to add all the contacts you wish to forward. You might want to uncheck ADD GROUP OWNER AS MEMBER.
Leave everything else with the defaults and click SAVE.
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Click the SENDERS INSIDE AND OUTSIDE OF MY ORGANIZATION radio so that any external emails are accepted.
CLICK SAVE.
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with your information:
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THIS WORKED PERFECT FOR ME
Note that at this point you cannot use the EAC to forward to groups.
I don't know why but Microsoft should fix this
unless there is something I don't know.
HOPE THIS HELPS everyone out there looking for this type of scenario.

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Dear Experts!!!!!
Gud Evening and Wish you all a HAPPY DIWALI !!!!!!!!
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Good morning , i have an IPhone 4s 16gb with IOS 7.0.6 and even in setting-mail and calendar i have setup the default account to use for sending mail outside mail app it use ICloud mail account.
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Jun T. wrote:
But there is a (high) possibility that Gmail's server requires authentication (or certification) to connect to it.
I wonder if they're simply silently dropping emails in certain cases. I forgot earlier that I have a Gmail account. If I send an email from the command line on my home computer, which is on Comcast, the mail log shows that I successfully connect to Gmail, the message is sent and accepted by Gmail, but the email never arrives in my inbox. I've tried several times with the same result.
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click here and here for instructions/information.
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Hi sap technical
Procedure:
Go to the Business workflow ...then follow the below steps ...!
its kind of configuration needed in the SAP System no coding required.
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Step2..
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EXPORTING
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DOCUMENT_TYPE = 'RAW'
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TABLES
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EXCEPTIONS
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Forwarding mail from external OSX 10.3 to internal OS 10.4 postfix server?

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