diff --git a/infra/deployments/forms/forms-runner/main.tf b/infra/deployments/forms/forms-runner/main.tf
index a8c4e739b..7c02c8e9f 100644
--- a/infra/deployments/forms/forms-runner/main.tf
+++ b/infra/deployments/forms/forms-runner/main.tf
@@ -67,5 +67,5 @@ module "forms_runner" {
   send_logs_to_cyber                          = var.send_logs_to_cyber
   bounces_and_complaints_kms_key_arn          = data.terraform_remote_state.forms_ses.outputs.submission_email_bounces_and_complaints_kms_key_arn
   deliveries_kms_key_arn                      = data.terraform_remote_state.forms_ses.outputs.submission_email_successful_deliveries_kms_key_arn
-
+  ses_submissions_enabled                     = var.forms_runner_settings.ses_submissions_enabled
 }
diff --git a/infra/deployments/forms/inputs.tf b/infra/deployments/forms/inputs.tf
index 1b6ab7130..2416ceeff 100644
--- a/infra/deployments/forms/inputs.tf
+++ b/infra/deployments/forms/inputs.tf
@@ -189,6 +189,7 @@ variable "forms_runner_settings" {
     allow_human_readonly_roles_to_assume_submissions_to_runner_role = bool
     ses_submission_email_from_email_address                         = string
     ses_submission_email_reply_to_email_address                     = string
+    ses_submissions_enabled                                         = bool
   })
 }
 
diff --git a/infra/deployments/forms/tfvars/dev.tfvars b/infra/deployments/forms/tfvars/dev.tfvars
index c9eb6cb3f..904d6e0e7 100644
--- a/infra/deployments/forms/tfvars/dev.tfvars
+++ b/infra/deployments/forms/tfvars/dev.tfvars
@@ -106,6 +106,7 @@ forms_runner_settings = {
   allow_human_readonly_roles_to_assume_submissions_to_runner_role = true
   ses_submission_email_from_email_address                         = "no-reply@dev.forms.service.gov.uk"
   ses_submission_email_reply_to_email_address                     = "no-reply@dev.forms.service.gov.uk"
+  ses_submissions_enabled                                         = false
 }
 scheduled_smoke_tests_settings = {
   enable_scheduled_smoke_tests = true
diff --git a/infra/deployments/forms/tfvars/production.tfvars b/infra/deployments/forms/tfvars/production.tfvars
index 700dc68b8..1f77a1d97 100644
--- a/infra/deployments/forms/tfvars/production.tfvars
+++ b/infra/deployments/forms/tfvars/production.tfvars
@@ -150,6 +150,7 @@ forms_runner_settings = {
   allow_human_readonly_roles_to_assume_submissions_to_runner_role = false
   ses_submission_email_from_email_address                         = "no-reply@forms.service.gov.uk"
   ses_submission_email_reply_to_email_address                     = "no-reply@forms.service.gov.uk"
+  ses_submissions_enabled                                         = false
 }
 scheduled_smoke_tests_settings = {
   enable_scheduled_smoke_tests = true
diff --git a/infra/deployments/forms/tfvars/staging.tfvars b/infra/deployments/forms/tfvars/staging.tfvars
index 6e132bc2c..d74fbd1d1 100644
--- a/infra/deployments/forms/tfvars/staging.tfvars
+++ b/infra/deployments/forms/tfvars/staging.tfvars
@@ -71,6 +71,7 @@ forms_runner_settings = {
   allow_human_readonly_roles_to_assume_submissions_to_runner_role = false
   ses_submission_email_from_email_address                         = "no-reply@staging.forms.service.gov.uk"
   ses_submission_email_reply_to_email_address                     = "no-reply@staging.forms.service.gov.uk"
+  ses_submissions_enabled                                         = false
 }
 scheduled_smoke_tests_settings = {
   enable_scheduled_smoke_tests = true
diff --git a/infra/deployments/forms/tfvars/user-research.tfvars b/infra/deployments/forms/tfvars/user-research.tfvars
index 96d374714..c5ab3b790 100644
--- a/infra/deployments/forms/tfvars/user-research.tfvars
+++ b/infra/deployments/forms/tfvars/user-research.tfvars
@@ -69,6 +69,7 @@ forms_runner_settings = {
   ses_submission_email_reply_to_email_address                     = "no-reply@research.forms.service.gov.uk"
   allow_human_readonly_roles_to_assume_submissions_to_s3_role     = false
   allow_human_readonly_roles_to_assume_submissions_to_runner_role = false
+  ses_submissions_enabled                                         = false
 }
 scheduled_smoke_tests_settings = {
   enable_scheduled_smoke_tests = false
diff --git a/infra/modules/forms-runner/main.tf b/infra/modules/forms-runner/main.tf
index c8612f903..1924ada1e 100644
--- a/infra/modules/forms-runner/main.tf
+++ b/infra/modules/forms-runner/main.tf
@@ -190,7 +190,11 @@ module "ecs_service" {
     {
       name  = "SETTINGS__SES_SUBMISSION_EMAIL__REPLY_TO_EMAIL_ADDRESS",
       value = var.ses_submission_email_reply_to_email_address
-    }
+    },
+    {
+      name  = "SETTINGS__FEATURES__SES_SUBMISSIONS",
+      value = var.ses_submissions_enabled
+    },
   ]
 
   secrets = [
diff --git a/infra/modules/forms-runner/variables.tf b/infra/modules/forms-runner/variables.tf
index ad37d211a..bbadc6c36 100644
--- a/infra/modules/forms-runner/variables.tf
+++ b/infra/modules/forms-runner/variables.tf
@@ -86,6 +86,12 @@ variable "api_v2_enabled" {
   default     = false
 }
 
+variable "ses_submissions_enabled" {
+  type        = bool
+  description = "Use AWS SES for all submission emails when enabled."
+  default     = false
+}
+
 variable "additional_submissions_to_s3_role_assumers" {
   type        = list(string)
   description = "A list of role ARNs which are also allowed to assume the role for submissions to s3"