diff --git a/.env.example b/.env.example
index b8dae2d..acba987 100755
--- a/.env.example
+++ b/.env.example
@@ -28,6 +28,8 @@ TF_VAR_hcloud_token=
 
 TF_VAR_healthchecksio_api_key=
 
+TF_VAR_mailcow_api_key=
+
 TF_VAR_ovh_application_key=
 TF_VAR_ovh_application_secret=
 TF_VAR_ovh_consumer_key=
diff --git a/.terraform.lock.hcl b/.terraform.lock.hcl
index e76c19b..d722e02 100644
--- a/.terraform.lock.hcl
+++ b/.terraform.lock.hcl
@@ -69,20 +69,20 @@ provider "registry.opentofu.org/goauthentik/authentik" {
 }
 
 provider "registry.opentofu.org/hashicorp/aws" {
-  version     = "5.72.1"
+  version     = "5.73.0"
   constraints = "~> 5.0"
   hashes = [
-    "h1:ckDAOn6cqqO2pJ226GYs8gIZif9TRmAuQEqnPL+LCgg=",
-    "zh:02ee636137e5f8cc9d6900c55a3f3c85e99166b51d17cf96bd62b27182dc7449",
-    "zh:04877c5ce0a0fef6b355decbfe4941e7d5f22d2b7062cd87f70dafe845d635c7",
-    "zh:3d129024594dcf2edac180b8276decc946f4f33d653f44d3c04c4c28b3f85dab",
-    "zh:6fc7ecf746791211d64a38361ce12303dfc3ddf0e609e6d854bc8f3a7f242234",
-    "zh:8d65352eeba3fef611c90b5161336b0cccf3fed8dc2c710537d6578925e2b189",
-    "zh:9c99b31104c80d885aad1846e2b2f25371cbc9c23281fb0e213be0101a415f2c",
-    "zh:b220737d06dc8ef3a6aa32055c1c633d08c27e046b5fb730f93969ef11abb928",
-    "zh:b741b0e79001765c8d2ffdb569f70c0d8b877b870b660e573f3bb6f42dd55f28",
-    "zh:d2434f271f261ccd28a85aa15627ee9cfc9c319a48eb6c0aeb1ffaf80b6ede20",
-    "zh:df4b2338e3e89d66c1697fae9be378db94cb0d7d309c9dc537024cb755b7e21a",
+    "h1:pQKtkpKb4hzErmZakSW+HHXeJubUlBKu1/p0C/b1UuI=",
+    "zh:16a345cb7265937b13f999d644a38c68661844462f5ac7fda33b5aa35d3fdb9f",
+    "zh:1a28b36980e55c430faf6dfd93744b42fedd455ec53e5d848d89f503b8f7808e",
+    "zh:4303bc542d832ced373f64f8f154989affebc04704ae55f00b404167a512891d",
+    "zh:6079983b35df36c0980c6a7eabc17e9697e573ed0359bb07dc8004c40341ee5d",
+    "zh:711419826ce136e64fa172faffcdd23c25ad47e05a2b55be5deb5ae663ae399a",
+    "zh:7ac9ddb634dc98040b8db683b9d829c6654bcbd2cb6c15edaa85029780ea9d57",
+    "zh:8ce89e19e7e1ae84fa9eae98f79dd8654d774daabe2cc73e85d05d2dd00fcd08",
+    "zh:be420d05ec4d31a3a393c19831da10664a109a5ad527b7043f7a75059d694008",
+    "zh:c6552f1c4246afd1b8607edc4c29639846a530487c82663c51ddfb998a259eca",
+    "zh:d5a2a931f83625105c9502398f391165add5a886d950f193fc5721ad18dec273",
   ]
 }
 
@@ -172,6 +172,29 @@ provider "registry.opentofu.org/kristofferahl/healthchecksio" {
   ]
 }
 
+provider "registry.opentofu.org/l-with/mailcow" {
+  version     = "0.7.5"
+  constraints = "~> 0.7.5"
+  hashes = [
+    "h1:gEiN/SOJl+T1V585/Pqk/Y3FkX8+An/M3zbztdEfmWk=",
+    "zh:0919018dfdab37f86b61dfe2ecd8d4b6a6532983edc6deab9e7f3d5ec1a45375",
+    "zh:16e513369e37f2d8fab43545940991c3ce2b140bb37c92bc77ec84240235ad26",
+    "zh:19bcf3660ac7545103cf999e0066442f9d6350db9654e1496726520cef287246",
+    "zh:1f6d827f5c0a2253550def77d2473bf62b72355930b5d00f59dc1b0af5aff953",
+    "zh:242d5cb545f1b20be24672e984fb78c27bf21da27c25ccbac8cd8c3142d32d83",
+    "zh:40a17c3734c330f2d0e11adb377b04d8bf11e799e78f4bacf2797ee589312756",
+    "zh:475ac6440db8cb80df1e8e5bb475f7dd73548fabd50e60e78e66ccd2e6e63baf",
+    "zh:48a67a019575ca784275dbcd9f7ee209012c0b311db8b82b91511f7970e1f9d2",
+    "zh:6dc3f2a073264cf79230811f528d3a916b8753031c0dad80b9999f64aa6951ba",
+    "zh:71d64c63cb4abca1fc920d694785551dd9ef15b5b601a6682ec647bae4acc881",
+    "zh:7a7fa7621ac582802329565a010a96114a1c8a5638b8aefe62095bdbefc1c988",
+    "zh:a11f6332a9d5e2d1ca01a906576d48dcf99e9f75c6e376157e35c24aef1039b9",
+    "zh:bec618cd75e300a8ae98852a70b1b56cd0c2bc61e4e1b11178029822fffc32b4",
+    "zh:c8132e507938516f2595a00b1bc19e666fe8a3df0077ca3bbeb9107dacd4fd2d",
+    "zh:cfff5048bc75345eda1bc6067e4e92c8b7c24d5fdd985fdb5d2e30997d644d15",
+  ]
+}
+
 provider "registry.opentofu.org/ovh/ovh" {
   version     = "0.48.0"
   constraints = "~> 0.48.0"
diff --git a/main.tf b/main.tf
index 7504d70..8597f73 100644
--- a/main.tf
+++ b/main.tf
@@ -33,6 +33,10 @@ terraform {
       source = "goauthentik/authentik"
       version = "~> 2024.8.0"
     }
+    mailcow = {
+      source = "l-with/mailcow"
+      version = "~> 0.7.5"
+    }
     postgresql = {
       source = "cyrilgdn/postgresql"
       version = "~> 1.23.0"
@@ -132,6 +136,11 @@ provider "authentik" {
   token = var.authentik_token
 }
 
+provider "mailcow" {
+  host_name = var.mailcow_host_name
+  api_key   = var.mailcow_api_key
+}
+
 provider "postgresql" {
   host            = var.postgresql_host
   port            = var.postgresql_port
diff --git a/modules/services/mailcow.tf b/modules/services/mailcow.tf
new file mode 100644
index 0000000..9cf00bd
--- /dev/null
+++ b/modules/services/mailcow.tf
@@ -0,0 +1,17 @@
+resource "random_password" "mailcow_service_passwords" {
+  for_each = local.services_mail
+  length  = 32
+  special = false
+}
+
+resource "mailcow_mailbox" "services" {
+  for_each    = local.services_mail
+  domain      = "serguzim.me"
+  full_name   = each.value.mail
+  local_part  = each.value.mail
+  password    = random_password.mailcow_service_passwords[each.key].result
+  imap_access = false
+  pop3_access = false
+  sogo_access = false
+  quota       = 128
+}
diff --git a/modules/services/main.tf b/modules/services/main.tf
index 4337d11..02e0134 100644
--- a/modules/services/main.tf
+++ b/modules/services/main.tf
@@ -4,6 +4,10 @@ terraform {
       source = "goauthentik/authentik"
       version = "~> 2024.8.0"
     }
+    mailcow = {
+      source = "l-with/mailcow"
+      version = "~> 0.7.5"
+    }
     postgresql = {
       source = "cyrilgdn/postgresql"
       version = "~> 1.23.0"
@@ -15,4 +19,5 @@ locals {
   services_auth = {for key, val in var.services : key => val if val.auth}
   services_database = {for key, val in var.services : key => val if val.database}
   services_s3 = {for key, val in var.services : key => val if val.s3}
+  services_mail = {for key, val in var.services : key => val if val.mail != null}
 }
diff --git a/modules/services/output.tf b/modules/services/output.tf
index 14edcb8..53816ba 100644
--- a/modules/services/output.tf
+++ b/modules/services/output.tf
@@ -19,3 +19,13 @@ output "postgresql_data" {
   }
   sensitive = true
 }
+
+output "mailcow_data" {
+  value = {
+    for key in keys(mailcow_mailbox.services) : key => {
+      "address"  = mailcow_mailbox.services[key].address
+      "password" = mailcow_mailbox.services[key].password
+    }
+  }
+  sensitive = true
+}
diff --git a/modules/services/variables.tf b/modules/services/variables.tf
index d7657e1..ae59dff 100644
--- a/modules/services/variables.tf
+++ b/modules/services/variables.tf
@@ -18,5 +18,6 @@ variable "services" {
     auth_redirects = optional(list(string))
     s3 = bool
     database = bool
+    mail = optional(string)
   }))
 }
diff --git a/output.tf b/output.tf
index 922f4d6..5b4e5ca 100644
--- a/output.tf
+++ b/output.tf
@@ -17,6 +17,11 @@ output "healthchecksio" {
   sensitive = true
 }
 
+output "mailcow_data" {
+  value = module.services.mailcow_data
+  sensitive = true
+}
+
 output "postgresql_data" {
   value = module.services.postgresql_data
   sensitive = true
diff --git a/playbooks/roles/authentik/vars/main.yml b/playbooks/roles/authentik/vars/main.yml
index d03b16d..adaeb84 100644
--- a/playbooks/roles/authentik/vars/main.yml
+++ b/playbooks/roles/authentik/vars/main.yml
@@ -14,12 +14,12 @@ authentik_env:
 
   AUTHENTIK_EMAIL__HOST: "{{ mailer.host }}"
   AUTHENTIK_EMAIL__PORT: "{{ mailer.port }}"
-  AUTHENTIK_EMAIL__USERNAME: "{{ vault_authentik.mail.user }}"
-  AUTHENTIK_EMAIL__PASSWORD: "{{ vault_authentik.mail.pass }}"
+  AUTHENTIK_EMAIL__USERNAME: "{{ opentofu.mailcow_data.authentik.address }}"
+  AUTHENTIK_EMAIL__PASSWORD: "{{ opentofu.mailcow_data.authentik.password }}"
   AUTHENTIK_EMAIL__USE_TLS: true
   AUTHENTIK_EMAIL__USE_SSL: false
   AUTHENTIK_EMAIL__TIMEOUT: 10
-  AUTHENTIK_EMAIL__FROM: auth@serguzim.me
+  AUTHENTIK_EMAIL__FROM: "{{ opentofu.mailcow_data.authentik.address }}"
 
   AUTHENTIK_AVATARS: none
 
diff --git a/playbooks/roles/forgejo/vars/main.yml b/playbooks/roles/forgejo/vars/main.yml
index 558b01b..75ba21f 100644
--- a/playbooks/roles/forgejo/vars/main.yml
+++ b/playbooks/roles/forgejo/vars/main.yml
@@ -51,11 +51,11 @@ forgejo_env:
 
   FORGEJO__mailer__ENABLED: true
   FORGEJO__mailer__PROTOCOL: smtp+starttls
-  FORGEJO__mailer__SMTP_ADDR: mail.serguzim.me
-  FORGEJO__mailer__SMTP_PORT: 587
-  FORGEJO__mailer__FROM: Forgejo <git@serguzim.me>
-  FORGEJO__mailer__USER: git@serguzim.me
-  FORGEJO__mailer__PASSWD: "{{ vault_forgejo.mailer_passwd }}"
+  FORGEJO__mailer__SMTP_ADDR: "{{ mailer.host }}"
+  FORGEJO__mailer__SMTP_PORT: "{{ mailer.post }}"
+  FORGEJO__mailer__FROM: "git <{{ opentofu.mailcow_data.forgejo.address }}>"
+  FORGEJO__mailer__USER: "{{ opentofu.mailcow_data.forgejo.address }}"
+  FORGEJO__mailer__PASSWD: "{{ opentofu.mailcow_data.forgejo.password }}"
   FORGEJO__mailer__SEND_AS_PLAIN_TEXT: true
 
   FORGEJO__picture__DISABLE_GRAVATAR: true
diff --git a/playbooks/roles/homebox/vars/main.yml b/playbooks/roles/homebox/vars/main.yml
index 1ae0a50..422476f 100644
--- a/playbooks/roles/homebox/vars/main.yml
+++ b/playbooks/roles/homebox/vars/main.yml
@@ -5,11 +5,11 @@ homebox_svc:
 
 homebox_env:
   HBOX_OPTIONS_ALLOW_REGISTRATION: false
-  HBOX_MAILER_HOST: mail.serguzim.me
-  HBOX_MAILER_PORT: 587
-  HBOX_MAILER_USERNAME: inventory@serguzim.me
-  HBOX_MAILER_PASSWORD: "{{ vault_homebox.mailer_passwd }}"
-  HBOX_MAILER_FROM: Homebox <inventory@serguzim.me>
+  HBOX_MAILER_HOST: "{{ mailer.host }}"
+  HBOX_MAILER_PORT: "{{ mailer.port }}"
+  HBOX_MAILER_USERNAME: "{{ opentofu.mailcow_data.homebox.address }}"
+  HBOX_MAILER_PASSWORD: "{{ opentofu.mailcow_data.homebox.password }}"
+  HBOX_MAILER_FROM: "homebox <{{ opentofu.mailcow_data.homebox.address }}>"
   HBOX_SWAGGER_SCHEMA: https
 
 homebox_compose:
diff --git a/playbooks/roles/synapse/vars/main.yml b/playbooks/roles/synapse/vars/main.yml
index f1e62ed..621ec7a 100644
--- a/playbooks/roles/synapse/vars/main.yml
+++ b/playbooks/roles/synapse/vars/main.yml
@@ -92,10 +92,10 @@ synapse_yml:
   email:
     smtp_host: mail.serguzim.me
     smtp_port: 587
-    smtp_user: matrix@serguzim.me
-    smtp_pass: "{{ vault_synapse.mail.pass }}"
+    smtp_user: "{{ opentofu.mailcow_data.synapse.address }}"
+    smtp_pass: "{{ opentofu.mailcow_data.synapse.password }}"
     require_transport_security: true
-    notif_from: Matrix <matrix@serguzim.me>
+    notif_from: "matrix <{{ opentofu.mailcow_data.synapse.address }}>"
 
 synapse_compose:
   watchtower: true
diff --git a/playbooks/roles/vikunja/vars/main.yml b/playbooks/roles/vikunja/vars/main.yml
index f5c6848..7cd6e8c 100644
--- a/playbooks/roles/vikunja/vars/main.yml
+++ b/playbooks/roles/vikunja/vars/main.yml
@@ -28,9 +28,9 @@ vikunja_yml:
     enabled: true
     host: "{{ mailer.host }}"
     port: "{{ mailer.port }}"
-    username: "{{ vault_vikunja.mailer.user }}"
-    password: "{{ vault_vikunja.mailer.pass }}"
-    fromemail: "{{ vault_vikunja.mailer.user }}"
+    username: "{{ opentofu.mailcow_data.vikunja.address }}"
+    password: "{{ opentofu.mailcow_data.vikunja.password }}"
+    fromemail: "{{ opentofu.mailcow_data.vikunja.address }}"
 
   auth:
     local:
diff --git a/playbooks/roles/watchtower/vars/main.yml b/playbooks/roles/watchtower/vars/main.yml
index 78f4900..bdd5bb7 100644
--- a/playbooks/roles/watchtower/vars/main.yml
+++ b/playbooks/roles/watchtower/vars/main.yml
@@ -8,12 +8,12 @@ watchtower_env:
   # WATCHTOWER_NO_PULL: true
 
   WATCHTOWER_NOTIFICATIONS: email
-  WATCHTOWER_NOTIFICATION_EMAIL_FROM: "watchtower@serguzim.me"
+  WATCHTOWER_NOTIFICATION_EMAIL_FROM: "{{ opentofu.mailcow_data.watchtower.address }}"
   WATCHTOWER_NOTIFICATION_EMAIL_TO: "{{ admin_email }}"
   WATCHTOWER_NOTIFICATION_EMAIL_SERVER: "{{ mailer.host }}"
   WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PORT: "{{ mailer.port }}"
-  WATCHTOWER_NOTIFICATION_EMAIL_SERVER_USER: "watchtower@serguzim.me"
-  WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD: "{{ vault_watchtower.mailer.pass }}"
+  WATCHTOWER_NOTIFICATION_EMAIL_SERVER_USER: "{{ opentofu.mailcow_data.watchtower.address }}"
+  WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD: "{{ opentofu.mailcow_data.watchtower.password }}"
   WATCHTOWER_NOTIFICATION_EMAIL_DELAY: 5
 
 watchtower_compose:
diff --git a/services.auto.tfvars b/services.auto.tfvars
index d8590e8..4f07a6f 100644
--- a/services.auto.tfvars
+++ b/services.auto.tfvars
@@ -26,6 +26,7 @@ services = {
     auth = false
     database = true
     s3 = false
+    mail = "auth"
   },
 
   "backup" = {
@@ -119,6 +120,7 @@ services = {
     auth_redirects = ["https://git.serguzim.me/user/oauth2/auth.serguzim.me/callback"]
     database = true
     s3 = true
+    mail = "git"
   },
 
   "forgejo_runner" = {
@@ -148,6 +150,7 @@ services = {
     auth_redirects = ["https://status.serguzim.me/authorization-code/callback"]
     database = false
     s3 = false
+    mail = "status"
   },
 
   "homebox" = {
@@ -170,6 +173,7 @@ services = {
     auth = false
     database = false
     s3 = false
+    mail = "inventory"
   },
 
   "immich" = {
@@ -436,6 +440,7 @@ services = {
     auth_redirects = ["https://matrix.serguzim.me/_synapse/client/oidc/callback"]
     database = true
     s3 = false
+    mail = "matrix"
   },
 
   "tandoor" = {
@@ -532,6 +537,7 @@ services = {
     auth_redirects = ["https://todo.serguzim.me/auth/openid/authserguzimme"]
     database = true
     s3 = false
+    mail = "todo"
   },
 
   "watchtower" = {
@@ -539,6 +545,7 @@ services = {
     auth = false
     database = false
     s3 = false
+    mail = "watchtower"
   },
 
   "wiki_js" = {
@@ -553,6 +560,7 @@ services = {
     auth_redirects = ["https://wiki.serguzim.me/login/f792bc7d-1a25-4437-944e-55eaf0111102/callback"]
     database = true
     s3 = false
+    mail = "wiki"
   },
 
   "woodpecker" = {
diff --git a/templates/infrastructure.d2.j2 b/templates/infrastructure.d2.j2
index b78bd65..86d5670 100644
--- a/templates/infrastructure.d2.j2
+++ b/templates/infrastructure.d2.j2
@@ -74,6 +74,13 @@ external: {
 external.scaleway.s3.{{ svc.name }}
 {% endif %}
 
+{% if svc.mail %}
+{{ svc.key }} -> {{ mail_key }}: {
+    style.stroke: "#C9B81F"
+}
+{{ mail_key }}.{{ svc.name }}
+{% endif %}
+
 {% endfor %}{# svc #}
 
 {% for svc in grid_svcs %}
diff --git a/variables.tf b/variables.tf
index fb508e5..ac7669e 100644
--- a/variables.tf
+++ b/variables.tf
@@ -72,6 +72,15 @@ variable "healthchecksio_api_key" {
 }
 
 
+variable "mailcow_host_name" {
+  default = "mail.serguzim.me"
+}
+
+variable "mailcow_api_key" {
+  sensitive = true
+}
+
+
 variable "ovh_application_key" {
   sensitive = true
 }
@@ -169,6 +178,7 @@ variable "services" {
     auth_redirects = optional(list(string))
     s3 = bool
     database = bool
+    mail = optional(string)
   }))
 }
 
diff --git a/visualize.py b/visualize.py
index 13b2d5c..3dc3af7 100755
--- a/visualize.py
+++ b/visualize.py
@@ -63,6 +63,7 @@ def parse_service(svc, data, hosts):
     for dns in data.get("dns") or []:
         domains.append(f"- {dns['domain']}")
 
+    data['name'] = svc
     data['key'] = svc_key
     data['host_key'] = host_key(data["host"], hosts)
     data['label'] = "\\n".join([svc] + domains)
@@ -98,15 +99,17 @@ if __name__ == '__main__':
     db_key = service_key_find("postgresql", services, hosts)
     auth_key = service_key_find("authentik", services, hosts)
     monitoring_key = service_key_find("gatus", services, hosts)
+    mail_key = service_key_find("mailcowdockerized", services, hosts)
 
     jinja_loader = jinja2.FileSystemLoader(searchpath="./templates")
     jinja_env = jinja2.Environment(loader=jinja_loader)
     template = jinja_env.get_template("infrastructure.d2.j2")
     print(template.render(
-        grid_svcs=[db_key, auth_key],
+        grid_svcs=[db_key, auth_key, mail_key],
         svcs=parse_services(services, hosts),
         hosts=parse_hosts(hosts),
         db_key=db_key,
         auth_key=auth_key,
         monitoring_key=monitoring_key,
+        mail_key=mail_key,
     ))