diff --git a/.ci/dev/regression/Jenkinsfile b/.ci/dev/regression/Jenkinsfile
index 249844847b..06aa479a0e 100644
--- a/.ci/dev/regression/Jenkinsfile
+++ b/.ci/dev/regression/Jenkinsfile
@@ -41,17 +41,6 @@ def nexusIqStageChoices = [nexusDefaultIqStage].plus(
                         'operate'
                 ].minus([nexusDefaultIqStage]))
 
-/**
- * define an empty teamsWebHookURL and if it is a Release Branch
- * then set it for the Corda 4 Jenkins Connector
- */
-def teamsWebHookURL = ""
-if (isReleaseBranch || isReleaseTag){
-    withCredentials([string(credentialsId: 'ms-teams-webhook', variable: 'webhook_url')]) {
-        teamsWebHookURL = "$webhook_url"
-    }
-}
-
 /**
  * Common Gradle arguments for all Gradle executions
  */
@@ -72,33 +61,9 @@ pipeline {
      */
     options {
         buildDiscarder(logRotator(daysToKeepStr: '14', artifactDaysToKeepStr: '14'))
-        office365ConnectorWebhooks([[
-                                            name                 : "Corda 4 Jenkins Connector",
-                                            notifyBackToNormal   : true,
-                                            startNotification    : false,
-                                            notifyFailure        : true,
-                                            notifySuccess        : true,
-                                            notifyNotBuilt       : false,
-                                            notifyAborted        : false,
-                                            notifyRepeatedFailure: true,
-                                            notifyUnstable       : true,
-                                            url                  : "${teamsWebHookURL}"
-                                    ]])
         parallelsAlwaysFailFast()
         timeout(time: 6, unit: 'HOURS')
         timestamps()
-        office365ConnectorWebhooks([[
-                                            name                 : "Corda 4 Jenkins Connector",
-                                            notifyBackToNormal   : true,
-                                            startNotification    : false,
-                                            notifyFailure        : true,
-                                            notifySuccess        : true,
-                                            notifyNotBuilt       : false,
-                                            notifyAborted        : false,
-                                            notifyRepeatedFailure: true,
-                                            notifyUnstable       : true,
-                                            url                  : "${teamsWebHookURL}"
-                                    ]])
     }
 
     parameters {