How do I block ports in SonicWALL?

Navigate to Firewall | Access Rules and select Add. Here, the Service is SSH, source is LAN Subnets, and destination is Any as we would like to block all SSH traffic going from the LAN to the WAN. NOTE:Ensure that the Deny rule that is created in this case, is prioritized higher than the Any-> Any Allow rule.

How do I enable SMTP on SonicWALL?

To configure SMTP Authentication for Outbound, follow these steps: Navigate to Manage > Network > Server Configuration page….

  1. On the next page, select the radio button under This path uses credential as follows.
  2. Enable the check box Sends an SMTP AUTH command with the following credentials to the downstream mail server.

How do I allow SMTP through my firewall?

Allowing SMTP through firewall – configuration steps

  1. Open Windows Defender Firewall.
  2. Go to Advanced settings.
  3. Select Inbound rules.
  4. Create a New rule…
  5. Choose Port rule.
  6. Select TCP.
  7. Specify the local ports: Enter “25” into the textbox.
  8. Enable “Allow the connection”

How do I block SMTP?

To block the SMTP traffic from the other machines, additional network access rules can be defined to extend or override the default access rules. Access rules can be created that allow SMTP access from the LAN zone to the WAN for Exchange server IP address and then add a Deny SMTP access rule for all other machines.

How do I block ports?

  1. Click “Start | Control Panel | System and Security | Windows Firewall.”
  2. Select “Advanced Settings.” Click “Inbound Rules” to block an inbound port; click “Outbound Rules” to block an outbound port.
  3. Select “New Rule.” Choose “Port” from the options and then click “Next.”

How do I set up email alerts on SonicWALL?

Resolution for SonicOS 6.5 Send Log to E-mail address – Enter your e-mail address ([email protected] or [email protected] or [email protected] ) in this field to receive the event log via e-mail. Once sent, the log is cleared from the Sonicwall memory.

Should I block SMTP?

Normally ports 465 and 587 require user authentication prior to accepting emails – if this is the case, then you don’t need to block these ports (from the purpose of being an open relay), as only users who are authenticated against your system can use them.

How do you check SMTP port is enabled or not?

Press Enter. Type telnet MAILSERVER 25 (replace MAILSERVER with your mail server (SMTP) which may be something like server.domain.com or mail.yourdomain.com). Press Enter. If that port is blocked, you will receive a connection error.

How do you exclude the outgoing mail server port from the system firewall and the external firewall?

To add a Windows firewall port exception:

  1. On the client operating system, go to Start > Run and type firewall.
  2. Click on the “Advanced Settings” link on the left pane.
  3. Click on the “Inbound Rules” option.
  4. On the left pane, click on “New rule”.
  5. Under “Rule Type” select the option “Port” and click next.