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Dear All,<br />
<br />
Can you tell me how to restrict receiving mails form allowed domains for particular users in postfix. &nbsp;And also let me know how to allow &nbsp;users to send allows domains only.<br />
Please let me know the procedure.<br />
<br />
Thanks,<br />
Vijay.G
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Dear All,

Can you tell me how to restrict receiving mails form allowed domains for particular users in postfix.  And also let me know how to allow  users to send allows domains only.
Please let me know the procedure.

Thanks,
Vijay.G

postfix email restriction

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.