Sep 22, 2020 
Support Center » Knowledgebase » VisNetic MailServer » Blocking Specific IP Addresses From Connecting To The VisNetic MailServer
 Blocking Specific IP Addresses From Connecting To The VisNetic MailServer
Solution VisNetic MailServer

From the VisNetic MailServer configuration console:

  1. Click the Security button
  2. Expand the Firewall menu
  3. Enable the Active option for the Firewall. This is not an anti-relaying feature. It is a firewall and that means only the specified IP addresses will (or will not) be able to connect to the server. This does not pertain to sending or receiving messages, it is about connecting.
  4. Click the Firewall Settings button
  5. SMTP POP3/IMAP4 Control These fields are used to list IP addresses or subnets. The format can be aaa.bbb.ccc.ddd or *.*.*.*. or a range a-b.*.*.* The asterisk stands for the subnet. The minus stands for a range between a and b. Entries are separated by semi-colon delimiters ( ; ) Note: If you enable the Grant option and enter IP addresses, only those listed IP’s will be able to connect. No other IP addresses will be allowed to connect to the mail server
  6. Click Ok
  7. Click Apply from the main configuration console screen to save the settings
If using the Web Admin, then From the VisNetic MailServer Web Admin:
  1. Click the Security link
  2. Enable the Active option for the Firewall setting. This enables the firewall functionality which is defined in the following 3 fields. This is not an anti-relaying feature. It is a firewall and that means only the specified IP addresses will (or will not) be able to connect to the server. This does not pertain to sending or receiving messages, it is about connecting.
  3. SMTP POP3/IMAP4 Control These fields are used to list IP addresses or subnets. The format can be aaa.bbb.ccc.ddd or *.*.*.*. or a range a-b.*.*.* The asterisk stands for the subnet. The minus stands for a range between a and b. Entries are separated by semi-colon delimiters ( ; )


Article Details
Article ID: 85
Created On: Aug 13, 2004 11:34 AM

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