diff --git a/command/push.go b/command/push.go
index 723e9d92c..f063ae0d3 100644
--- a/command/push.go
+++ b/command/push.go
@@ -183,15 +183,15 @@ func (c *PushCommand) Run(args []string) int {
 		info := &uploadBuildInfo{Type: b.Type}
 		// todo: remove post-migration
 		if b.Type == "vagrant" {
-			c.Ui.Message("\n-----------------------------------------------------------------------------------\n" +
-				"Warning: Vagrant-related functionality will be moved from Terraform Enterprise into \n" +
-				"its own product, Vagrant Cloud. This migration is currently planned for June 27th, \n" +
-				"2017 at 6PM EDT/3PM PDT/10PM UTC. For more information see \n" +
+			c.Ui.Error("\n-----------------------------------------------------------------------------------\n" +
+				"Vagrant-related functionality has been moved from Terraform Enterprise into \n" +
+				"its own product, Vagrant Cloud. For more information see " +
 				"https://www.vagrantup.com/docs/vagrant-cloud/vagrant-cloud-migration.html\n" +
-				"In the meantime, you should activate your Vagrant Cloud account and replace your \n" +
-				"Atlas post-processor with the Vagrant Cloud post-processor. See\n" +
-				"https://www.packer.io/docs/post-processors/vagrant-cloud.html for more details." +
+				"Please replace the Atlas post-processor with the Vagrant Cloud post-processor,\n" +
+				"and see https://www.packer.io/docs/post-processors/vagrant-cloud.html for\n" +
+				"more detail.\n" +
 				"-----------------------------------------------------------------------------------\n")
+			return 1
 		}
 
 		// Determine if we're artifacting this build
@@ -251,6 +251,16 @@ func (c *PushCommand) Run(args []string) int {
 				"Builds: %s\n\n", strings.Join(badBuilds, ", ")))
 	}
 
+	c.Ui.Message("\n-----------------------------------------------------------------------\n" +
+		"Deprecation warning: The Packer and Artifact Registry features of Atlas\n" +
+		"will no longer be actively developed or maintained and will be fully\n" +
+		"decommissioned on Friday, March 30, 2018. Please see our guide on\n" +
+		"building immutable infrastructure with Packer on CI/CD for ideas on\n" +
+		"implementing these features yourself:\n" +
+		"https://www.packer.io/guides/packer-on-cicd/\n" +
+		"-----------------------------------------------------------------------\n",
+	)
+
 	// Start the archiving process
 	r, err := archive.CreateArchive(path, &opts)
 	if err != nil {
diff --git a/post-processor/atlas/post-processor.go b/post-processor/atlas/post-processor.go
index 9b06e61ec..a0df0db06 100644
--- a/post-processor/atlas/post-processor.go
+++ b/post-processor/atlas/post-processor.go
@@ -151,6 +151,17 @@ func (p *PostProcessor) PostProcess(ui packer.Ui, artifact packer.Artifact) (pac
 			"and see https://www.packer.io/docs/post-processors/vagrant-cloud.html for\n" +
 			"more detail.\n")
 	}
+
+	ui.Message("\n-----------------------------------------------------------------------\n" +
+		"Deprecation warning: The Packer and Artifact Registry features of Atlas\n" +
+		"will no longer be actively developed or maintained and will be fully\n" +
+		"decommissioned on Friday, March 30, 2018. Please see our guide on\n" +
+		"building immutable infrastructure with Packer on CI/CD for ideas on\n" +
+		"implementing these features yourself:\n" +
+		"https://www.packer.io/guides/packer-on-cicd/\n" +
+		"-----------------------------------------------------------------------\n",
+	)
+
 	if _, err := p.client.Artifact(p.config.user, p.config.name); err != nil {
 		if err != atlas.ErrNotFound {
 			return nil, false, fmt.Errorf(