Sometimes, we encounter with an issue that due to spamming in the server, our mail interface IP get blacklisted. After fixing the spamming issue, you need to change the mail interface IP address to functioning mail instantly.
Step 1 : Shutdown the exim service.
# service exim stop or /etc/init.d/exim stop
Step 2 : Edit your exim configuration file.
# vi /etc/exim.conf
Step 3: go to "remote_smtp" section under "TRANSPORTS CONFIGURATION".
By default it would look like below:
Quote:
remote_smtp:
driver = smtp
interface = ${if exists {/etc/mailips}{${lookup{$sender_address_domain}lsearch{/etc/mailips}{$value}{}}}{}}
helo_data = ${if exists {/etc/mailhelo}{${lookup{$sender_address_domain}lsearch{/etc/mailhelo}{$value}{$primary_hostname}}}{$primary_ho stname}}
Step 4 : Remove or comment line containing "interface" and "helo_data" and add new "interface" to match with that of your new IP address. It should look like as follows:
Quote:
remote_smtp:
driver = smtp
interface = 12.12.12.12 # Your IP address.
Step 5 : Save your changes and exit out from your exim configuration file.
Note : Dont forget to set read only attributes on exim configuration file, so that it wont get reset to default automatically.
You can do it using following command:
# chattr +aui /etc/exim.conf
Step 6 : start exim service on your server.
# service exim restart or /etc/init.d/exim start
