How to block outgoing mails in lotus domino

In Lotus Domino, you can block outgoing emails using various methods. Here are a few approaches:

Method 1: Using the "Block Outgoing Mail" feature in the Domino Server

  1. Go to the Domino Server console and navigate to the "Configuration" tab.
  2. Click on "Mail" and then "Outgoing Mail" in the left-hand menu.
  3. Check the box next to "Block outgoing mail" to enable this feature.
  4. You can also specify a list of domains or IP addresses to block outgoing mail to.

Method 2: Using a Domino Agent

  1. Create a new Domino Agent using the Domino Designer.
  2. Set the agent to run on a schedule (e.g., every 5 minutes) or manually.
  3. In the agent's code, use the Send method to send a test email to a known address.
  4. If the email is sent successfully, the agent will exit. If not, it will continue to run and block outgoing mail.
  5. You can also use the GetMailRouter method to get the current mail router and then use the BlockMail method to block outgoing mail.

Example code:

Sub Initialize
    Dim mailRouter As New NotesMailRouter
    If Not mailRouter.BlockMail Then
        Print "Outgoing mail blocked"
    End If
End Sub

Method 3: Using a Domino Formula Language (FSL) formula

  1. Create a new formula in the Domino Designer.
  2. Set the formula to run on the "Send" event of the mail document.
  3. Use the @If function to check if the mail is outgoing (e.g., @IsOutgoingMail) and if so, block it using the @BlockMail function.

Example formula:

@If(@IsOutgoingMail; @BlockMail; "")

Method 4: Using a third-party product or plugin

There are several third-party products and plugins available that can help block outgoing mail in Lotus Domino, such as:

Remember to test and validate any blocking method you choose to ensure it does not interfere with legitimate email traffic.