Linux notes 3-4 SMTP,. Configuring e-mail Transport

4. Configure e-Mail transfer *****************
# #1. Basic e-mail Configuration # #
Configure The DNS service to add MX records
Two servers configure /ETC/POSTFIX/MAIN.CF files separately

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myhostname--Host Name

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mydomain--Domain Name

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myorigin--rewrites locally published e-mail messages so that they appear to come from the domain. This helps ensure that the response is returned to the inbound mail server

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inet_interfaces--controls the network interface that Postfix listens for incoming e-mail. If all is set, all network interfaces are listening. You can also specify a specific address.

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mydestination--e-mail messages that receive addresses for these domains are passed to the MDA for local delivery.

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Restart Service

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will be mail_linux for the same configuration

Test

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attached:
MAILQ//view messages in a queue
postqueue-f//processing messages in a queue
postsuper-d ID//delete ID for mail
>/var/mail/root//clear root user mail
postconf-d//Displays the profile default value.
the Postconf-n//display configuration file differs from the default value of the change.
postconf-e "..."//Change Configuration

## 2. user alias # #
1. Anonymous Mail

1. Modify the configuration file, the anonymous user corresponds, the front is anonymous, followed by the real user name, if the real user name is included as a file, can be used to bulk mail.

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2. Create an alias database

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3. Restart the service

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4. Testing

Anonymous testing:

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Mass testing:

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## 3. e-mail alias # #--Outbound address spoofing

1. Modify the configuration file

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Add a spoofed address

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2. Make the configuration file effective immediately

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3. Modify the main configuration file in Smtp_generic_maps

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4. Restart the service

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5. Test:

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## 4. Remote detection Port # #

detection via remote host Mail_westos 25-Port

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View Results

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Linux notes 3-4 SMTP,. Configuring e-mail Transport