How to divert incoming mail to another mail server

There are a few ways to divert incoming mail to another mail server, depending on your specific setup and requirements. Here are a few common methods:

Method 1: DNS MX Record Update

You can update your DNS MX record to point to the new mail server. This method is recommended if you have control over your DNS settings.

  1. Update your DNS MX record to point to the new mail server's IP address or hostname.
  2. Set the priority of the new MX record to a lower value than the existing MX record to ensure that incoming mail is routed to the new server.

Method 2: Mail Forwarding

You can set up mail forwarding on your existing mail server to forward incoming mail to the new mail server.

  1. Log in to your existing mail server's web interface or control panel.
  2. Look for the mail forwarding or aliasing settings.
  3. Create a new forwarder or alias that forwards incoming mail to the new mail server's email address.

Method 3: Mail Relay

You can set up a mail relay on your existing mail server to forward incoming mail to the new mail server.

  1. Log in to your existing mail server's web interface or control panel.
  2. Look for the mail relay or relay settings.
  3. Configure the relay settings to forward incoming mail to the new mail server's IP address or hostname.

Method 4: Third-Party Services

You can use third-party services like Sendmail or Postfix to forward incoming mail to another mail server.

  1. Install and configure Sendmail or Postfix on your existing mail server.
  2. Configure the service to forward incoming mail to the new mail server's email address.

Example Configuration

Here's an example configuration for Sendmail:

  1. Edit the /etc/mail/sendmail.cf file and add the following lines:
    Fw [email protected]
  2. Restart the Sendmail service to apply the changes.

Here's an example configuration for Postfix:

  1. Edit the /etc/postfix/main.cf file and add the following lines:
    virtual_alias_maps = hash:/etc/postfix/virtual
  2. Create a new file /etc/postfix/virtual with the following contents:
    [email protected] [email protected]
  3. Restart the Postfix service to apply the changes.

Important Notes