diff --git a/README.md b/README.md
index 932a9f1..bc94175 100644
--- a/README.md
+++ b/README.md
@@ -73,6 +73,22 @@ data "aws_route53_zone" "SES_domain" {
 |------|---------|
 | aws | >= 3.0 |
 
+## Modules
+
+No Modules.
+
+## Resources
+
+| Name |
+|------|
+| [aws_region](https://registry.terraform.io/providers/hashicorp/aws/3.0/docs/data-sources/region) |
+| [aws_route53_record](https://registry.terraform.io/providers/hashicorp/aws/3.0/docs/resources/route53_record) |
+| [aws_ses_domain_dkim](https://registry.terraform.io/providers/hashicorp/aws/3.0/docs/resources/ses_domain_dkim) |
+| [aws_ses_domain_identity](https://registry.terraform.io/providers/hashicorp/aws/3.0/docs/resources/ses_domain_identity) |
+| [aws_ses_domain_identity_verification](https://registry.terraform.io/providers/hashicorp/aws/3.0/docs/resources/ses_domain_identity_verification) |
+| [aws_ses_domain_mail_from](https://registry.terraform.io/providers/hashicorp/aws/3.0/docs/resources/ses_domain_mail_from) |
+| [aws_ses_receipt_rule](https://registry.terraform.io/providers/hashicorp/aws/3.0/docs/resources/ses_receipt_rule) |
+
 ## Inputs
 
 | Name | Description | Type | Default | Required |
@@ -87,6 +103,7 @@ data "aws_route53_zone" "SES_domain" {
 | from\_addresses | List of email addresses to catch bounces and rejections. | `list(string)` | n/a | yes |
 | mail\_from\_domain | Subdomain (of the route53 zone) which is to be used as MAIL FROM address | `string` | n/a | yes |
 | receive\_s3\_bucket | Name of the S3 bucket to store received emails (required if enable\_incoming\_email is true). | `string` | `""` | no |
+| receive\_s3\_kms\_key\_arn | The ARN of the KMS key for S3 objects of received emails (effective if enable\_incoming\_email is true). | `string` | `null` | no |
 | receive\_s3\_prefix | The key prefix of the S3 bucket to store received emails (required if enable\_incoming\_email is true). | `string` | `""` | no |
 | route53\_zone\_id | Route53 host zone ID to enable SES. | `string` | n/a | yes |
 | ses\_rule\_set | Name of the SES rule set to associate rules with. | `string` | n/a | yes |
@@ -97,7 +114,6 @@ data "aws_route53_zone" "SES_domain" {
 |------|-------------|
 | ses\_identity\_arn | SES identity ARN. |
 | ses\_verification\_token | A code which when added to the domain as a TXT record will signal to SES that the owner of the domain has authorised SES to act on their behalf. |
-
 <!-- END OF PRE-COMMIT-TERRAFORM DOCS HOOK -->
 
 ## Developer Setup
diff --git a/main.tf b/main.tf
index a456350..ac5db46 100644
--- a/main.tf
+++ b/main.tf
@@ -136,6 +136,7 @@ resource "aws_ses_receipt_rule" "main" {
 
     bucket_name       = var.receive_s3_bucket
     object_key_prefix = var.receive_s3_prefix
+    kms_key_arn       = var.receive_s3_kms_key_arn
   }
 }
 
diff --git a/variables.tf b/variables.tf
index 0e374d6..1d85008 100644
--- a/variables.tf
+++ b/variables.tf
@@ -42,6 +42,12 @@ variable "receive_s3_prefix" {
   default     = ""
 }
 
+variable "receive_s3_kms_key_arn" {
+  description = "The ARN of the KMS key for S3 objects of received emails (effective if enable_incoming_email is true)."
+  type        = string
+  default     = null
+}
+
 variable "route53_zone_id" {
   description = "Route53 host zone ID to enable SES."
   type        = string