use smtp from multi domains

You added in AD the user from domain2 as delegate to the user from domain 1 and the result is "domain2 on behalf of domain1"

To send as domain2 you need to grant "Send As" rights for the user from domain2 in the "Security" tab of the user from domain1 (in AD).

Within Outlook, while nn@domain2.com is logged on, the user can use the "From" field and write the address of nn@domain1.com. The result will be that the message is sent as nn@domain1.com

Please let me know if you need further help on this.

If i give in trhe security tab  the grant "send as" the mail go ahead without problem but in the header of the message put nn@domain2.com in name of nn1@domain1.com.
I need that if i log (with outlook in eschange mode) like nn@com1.com ican send a message like nn2@com2.com and in the header say only from nn2@com2.com

Remove the previous configuration that you made. Remove the delegate rights of domain2 from the domain1 user properties in AD.

ok, i do that but i cant send a mail from @dom2.com if i log as @dom1.com
How i resolve this problem?

I need to know if is availabe to do:
with 2 or more domain publicated in internet in a local domain, i want log (with outlook-exchange) in a user pepe@domain1.com and open a mailbox pepe2@domain2.com (i have 2 personal folder, each mailbox) and would send a mail from pepe2@domain2.com in the same session. in the header of the message would say from: "pepe2@domain2.com" only.
i can do it?

ok, i do that but i cant send a mail from @dom2.com if i log as @dom1.com
How i resolve this problem?

To do this, apply the permissions on the other account, just as you set the permissions for the first one.

I need to know if is availabe to do:
with 2 or more domain publicated in internet in a local domain, i want log (with outlook-exchange) in a user pepe@domain1.com and open a mailbox pepe2@domain2.com (i have 2 personal folder, each mailbox) and would send a mail from pepe2@domain2.com in the same session. in the header of the message would say from: "pepe2@domain2.com" only.
i can do it?

It's possible if the 2 mailboxes are in the same Exchange organization.

To gain full mailbox access to a different mailbox, you need the "Full Mailbox Rights". Here is an article on how to do this:
http://www.petri.co.il/grant_full_mailbox_rights_on_exchange_2000_2003.htm

To see 2 mailboxes in Outlook, you need to add the 2nd mailbox as additional mailbox. Here is a how to:
http://ittraining.lse.ac.uk/Documentation/OnlineGuides/Adding-Additional-Mailboxes.htm

An article related to granting "Send As" permissions:
http://searchexchange.techtarget.com/tip/1,289483,sid43_gci1103948,00.html

Hope this helps.

the two mailbox are in the same exchange of domain.local.
I defined two OU "domain1.com" and "domain2.com" in there i put mailbox users "pepe1@domain1.com"  and "pepe2@domain2.com". I gave full mailbox rights of pepe1@domain1.com over mailbox pepe2@domain2.com. I set outlook to see aditional mailbox in the exchange user pepe1@domain.com, it can see pepe2@domain2.com.
in this point i log in outlook with exchange user "pepe1.domain1.com" (with it personal folder) and show me other personal folder (of pepe2@domain2.com), i can receive both mailbox in this outlook correctly in it each personal folder.
In this way if i want send (in the same exchange session)a mail like pepe2@domain2.com (from:) the exchange server say that it cannot doit (not recognize the destinatary). I haveno t permission to send the message.
Otherwise if I give the grating "send as" permissions, in the exchange config user in AD, the message was sent without problem.
BUT the message is received (in exchange environments) with the header "pepe2@domain2.com send as pepe1@domain1.com".
AND THESE IS THE HEADER THAT I DONT WANT RECEIVE.
I WANT RECEIVE: if i sent from "pepe2@domain2.com" header sender "pepe2@doamin2.com".
Are you understand my problem ?
I´m sorry with my english, but when ask in spanish I have not answers.

Hi again,

Sorry for the delay. I'm pretty tied up with some work on my own.

I understand what you want to achieve.
There are 2 types of permissions:
- "send as". Is this is set, the header is "From: pepe2"
- "send on behalf" (or delegate). If this is set, the header is "From: pepe1 on behalf of pepe2"

If you set the "send as" rights and you still have the header with "on behalf of", you should check the delegates and remove the permissions from there. This will only leave the "send as" rights in place and the header will no longer show "on behalf of".

The settings for delegates can be found in:
- Outlook: Tools / Options / "Delagates" tab
- AD properties of the user (View / Advanced ): "Exchange General" tab / Delivery Options"

i´m sorry only i know the rights "send as" in :
user of AD-general option exchange-delegate right for delivery-send in name of-add a user.
i have in sapnish version: usuario de AD-opciones generales de exchange-opcion de entrega-en la casilla conceder permiso a-agrego usuario.
the other set i dont know where i can set.

i erase the set in AD properties "Exchange General" tab / Delivery Options" for delegate rights
In outlook exchange user advanced i set aditional mail box .
in AD user i set rights - advanced option of exchange - mail box rights- add user pepe2@dominio2.com full control of mail box to pepe1@domain1.com
when i send a mail from pepe2@domain2.com (logged as pepe1@domain1.com) the mail is not delivered "not exist destinatary, you have´nt right to do it"

i did the set in security (in this time) .i give permissions to "send AS" a self(pepe1@domain1.com) and add user pepe2@domain2.com with full control in the user pepe1@domain1.com.
i deselected the "send in name of" from delegate right.
I can send mail from pepe2@domain.com but the header "in name of" is in the mail.
Any more to do ?