diff --git a/.env.sample b/.env.sample
index dba9600..cf5ed0c 100644
--- a/.env.sample
+++ b/.env.sample
@@ -11,3 +11,5 @@ ETH_RPC_POLYGON=https://example.com/rpc
 KETL_HASHES_SOURCE=https://eth.example.com
 DOMAIN=verify.sealcred.xyz
 ENVIRONMENT=development
+MAILGUN_API_KEY=00000000000000000000000000000000
+MAILGUN_DOMAIN=example.com
\ No newline at end of file
diff --git a/README.md b/README.md
index f107ff0..27e9a68 100644
--- a/README.md
+++ b/README.md
@@ -68,6 +68,8 @@ And you should be good to go! Feel free to fork and submit pull requests.
 | `DOMAIN`              | Domain name for caddy, DNS should point at the IP where the code is hosted |
 | `ENVIRONMENT`         | Environment name (defaults to `development`)                               |
 | `KETL_HASHES_SOURCE`  | Link to merkle tree hashes for Ketl                                        |
+| `MAILGUN_API_KEY`     | Mailgun API key                                                            |
+| `MAILGUN_DOMAIN`      | Mailgun Domain                                                             |
 
 Also, please, consider looking at `.env.sample`.
 
diff --git a/package.json b/package.json
index ecb5fe4..d1860e8 100644
--- a/package.json
+++ b/package.json
@@ -19,11 +19,12 @@
   },
   "dependencies": {
     "@big-whale-labs/constants": "^0.2.15",
-    "@big-whale-labs/ketl-email": "^0.1.15",
+    "@big-whale-labs/ketl-email": "^0.2.1",
     "@big-whale-labs/seal-cred-email": "^1.1.2",
     "@hapi/boom": "^10.0.0",
     "@koa/cors": "^4.0.0",
     "@types/node-persist": "^3.1.4",
+    "@types/nodemailer-mailgun-transport": "^1.4.4",
     "@zk-kit/incremental-merkle-tree": "^1.0.0",
     "amala": "^8.0.2",
     "axios": "^1.5.0",
@@ -36,7 +37,8 @@
     "koa-bodyparser": "^4.3.0",
     "koa-router": "^12.0.0",
     "node-persist": "^3.1.3",
-    "nodemailer": "^6.8.0",
+    "nodemailer": "^6.9.5",
+    "nodemailer-mailgun-transport": "^2.1.5",
     "uuid": "^9.0.0"
   },
   "devDependencies": {
diff --git a/src/controllers/verify-ketl.ts b/src/controllers/verify-ketl.ts
index 066d986..5b5ba11 100644
--- a/src/controllers/verify-ketl.ts
+++ b/src/controllers/verify-ketl.ts
@@ -87,7 +87,7 @@ export default class VerifyKetlController {
       domain,
       forKetl: true,
       secret: secret.join(''),
-      subject: "Here's your token!",
+      subject: "Here's your signup code!",
       to: email,
     })
   }
@@ -108,7 +108,7 @@ export default class VerifyKetlController {
       domain,
       forKetl: true,
       secret: `${type}${attestationHash}${signature}`,
-      subject: "Here's your token!",
+      subject: "Here's signup code!",
       to: email,
     })
   }
diff --git a/src/helpers/env.ts b/src/helpers/env.ts
index ba0789e..20c3b65 100644
--- a/src/helpers/env.ts
+++ b/src/helpers/env.ts
@@ -24,6 +24,8 @@ export default cleanEnv(process.env, {
     default:
       'https://raw.githubusercontent.com/BigWhaleLabs/ketl-attestation-token/main',
   }),
+  MAILGUN_API_KEY: str(),
+  MAILGUN_DOMAIN: str(),
   PORT: num({ default: 1337 }),
   SMTP_PASS: str(),
   SMTP_USER: str(),
diff --git a/src/helpers/sendEmail.ts b/src/helpers/sendEmail.ts
index 82b37c8..e02f796 100644
--- a/src/helpers/sendEmail.ts
+++ b/src/helpers/sendEmail.ts
@@ -1,3 +1,4 @@
+import * as mg from 'nodemailer-mailgun-transport'
 import { createTransport } from 'nodemailer'
 import { generateTokenHtml as scEmail } from '@big-whale-labs/seal-cred-email'
 import env from '@/helpers/env'
@@ -16,6 +17,15 @@ const emailer = createTransport({
   secure: true,
 })
 
+const emailerMailgun = createTransport(
+  mg({
+    auth: {
+      api_key: env.MAILGUN_API_KEY,
+      domain: env.MAILGUN_DOMAIN,
+    },
+  })
+)
+
 export default async function ({
   domain,
   forKetl,
@@ -35,13 +45,20 @@ export default async function ({
       : scEmail({ domain, secret })
 
     const from = forKetl ? 'Ketl' : 'SealCred'
+    const fromEmail = forKetl
+      ? 'ketl@mail.useketl.com'
+      : 'verify@mail.sealcred.xyz'
     console.log(`Sending email to ${to}`)
-    await emailer.sendMail({
-      from: `"${from}" <${user}>`,
+
+    const info = {
+      from: `"${from}" <${fromEmail}>`,
       html,
       subject,
       to,
-    })
+    }
+
+    forKetl ? await emailerMailgun.sendMail(info) : await emailer.sendMail(info)
+
     console.log(`Email sent to ${to}`)
   } catch (error) {
     console.error(error instanceof Error ? error.message : error)
diff --git a/yarn.lock b/yarn.lock
index 1cf99b6..7b1705c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -40,9 +40,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@big-whale-labs/ketl-email@npm:^0.1.15":
-  version: 0.1.15
-  resolution: "@big-whale-labs/ketl-email@npm:0.1.15"
+"@big-whale-labs/ketl-email@npm:^0.2.1":
+  version: 0.2.1
+  resolution: "@big-whale-labs/ketl-email@npm:0.2.1"
   dependencies:
     envalid: ^7.3.1
     mjml: ^4.13.0
@@ -51,7 +51,7 @@ __metadata:
     react: ^18.2.0
     react-dom: ^18.2.0
     source-map-support: ^0.5.21
-  checksum: 38e63692e918c7cc8eb33218dcf18cddf97f9a98918c8fc29b2efe83274003528e766b709b49dcf03c7b0fe562b8dcd9237928f35a33b87a41f5da4c97769e5c
+  checksum: 190a64fd3fd14ec2d0acc7fa3fa2cdc063e21ad237a52eb184dfc4b3106e41faca8d63e8722e4ec93f11b0f79a0683c47649c8fe1fc523a6280d195f98944799
   languageName: node
   linkType: hard
 
@@ -1304,6 +1304,24 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/nodemailer-mailgun-transport@npm:^1.4.4":
+  version: 1.4.4
+  resolution: "@types/nodemailer-mailgun-transport@npm:1.4.4"
+  dependencies:
+    "@types/nodemailer": "*"
+  checksum: 1283b7226c1c5d251a1626745eef67f44e4728c4955a31f457644aaac9a6114773a8dce7deef2175e74d115265d162e56a4f57521457cf5097be37b7bcf3a165
+  languageName: node
+  linkType: hard
+
+"@types/nodemailer@npm:*":
+  version: 6.4.11
+  resolution: "@types/nodemailer@npm:6.4.11"
+  dependencies:
+    "@types/node": "*"
+  checksum: 1069c30ad416add6035ee1437c93dccb846fc389bd6b31c36d094d90f4626f0db63f7ba88fddc3c4d448570dcbef59051e19b868f5f1038a472ef0e8dc169637
+  languageName: node
+  linkType: hard
+
 "@types/nodemailer@npm:^6.4.6":
   version: 6.4.6
   resolution: "@types/nodemailer@npm:6.4.6"
@@ -1722,7 +1740,7 @@ __metadata:
   dependencies:
     "@big-whale-labs/bwl-eslint-backend": ^1.0.3
     "@big-whale-labs/constants": ^0.2.15
-    "@big-whale-labs/ketl-email": ^0.1.15
+    "@big-whale-labs/ketl-email": ^0.2.1
     "@big-whale-labs/prettier-config": ^1.1.3
     "@big-whale-labs/seal-cred-email": ^1.1.2
     "@hapi/boom": ^10.0.0
@@ -1736,6 +1754,7 @@ __metadata:
     "@types/node": ^18.11.9
     "@types/node-persist": ^3.1.4
     "@types/nodemailer": ^6.4.6
+    "@types/nodemailer-mailgun-transport": ^1.4.4
     "@types/uuid": ^8.3.4
     "@zk-kit/incremental-merkle-tree": ^1.0.0
     amala: ^8.0.2
@@ -1751,7 +1770,8 @@ __metadata:
     koa-router: ^12.0.0
     module-alias: ^2.2.2
     node-persist: ^3.1.3
-    nodemailer: ^6.8.0
+    nodemailer: ^6.9.5
+    nodemailer-mailgun-transport: ^2.1.5
     prettier: ^2.8.0
     source-map-support: ^0.5.21
     tsc-watch: ^5.0.3
@@ -1780,7 +1800,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"axios@npm:^1.5.0":
+"axios@npm:^1.3.3, axios@npm:^1.5.0":
   version: 1.5.0
   resolution: "axios@npm:1.5.0"
   dependencies:
@@ -1815,6 +1835,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"base-64@npm:^1.0.0":
+  version: 1.0.0
+  resolution: "base-64@npm:1.0.0"
+  checksum: d10b64a1fc9b2c5a5f39f1ce1e6c9d1c5b249222bbfa3a0604c592d90623caf74419983feadd8a170f27dc0c3389704f72faafa3e645aeb56bfc030c93ff074a
+  languageName: node
+  linkType: hard
+
 "base64-js@npm:^1.3.1":
   version: 1.5.1
   resolution: "base64-js@npm:1.5.1"
@@ -1882,6 +1909,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"bluebird@npm:^3.1.1":
+  version: 3.7.2
+  resolution: "bluebird@npm:3.7.2"
+  checksum: 869417503c722e7dc54ca46715f70e15f4d9c602a423a02c825570862d12935be59ed9c7ba34a9b31f186c017c23cac6b54e35446f8353059c101da73eac22ef
+  languageName: node
+  linkType: hard
+
 "bn.js@npm:^4.11.9":
   version: 4.12.0
   resolution: "bn.js@npm:4.12.0"
@@ -2329,6 +2363,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"consolidate@npm:^0.15.1":
+  version: 0.15.1
+  resolution: "consolidate@npm:0.15.1"
+  dependencies:
+    bluebird: ^3.1.1
+  checksum: 5a44ee975f8403dd3ff8ff3472fda7db0484b19f153eaac38e784465505a0741939c72d703befda7c75649739fc7a68f9659a86e2a62469336a8d531bd7a10df
+  languageName: node
+  linkType: hard
+
 "content-disposition@npm:~0.5.2":
   version: 0.5.4
   resolution: "content-disposition@npm:0.5.4"
@@ -4544,6 +4587,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"mailgun.js@npm:^8.0.1":
+  version: 8.2.2
+  resolution: "mailgun.js@npm:8.2.2"
+  dependencies:
+    axios: ^1.3.3
+    base-64: ^1.0.0
+    url-join: ^4.0.1
+  checksum: 9736fca6e845a3cfab471ec59764bb9365570cdee127f22e1e25e4ee4de2a4d618c66b4bee372949f469d0d6b86cffe49974a9626bfcb0f5cf36ac1fa6016799
+  languageName: node
+  linkType: hard
+
 "make-fetch-happen@npm:^10.0.3":
   version: 10.1.8
   resolution: "make-fetch-happen@npm:10.1.8"
@@ -5300,10 +5354,21 @@ __metadata:
   languageName: node
   linkType: hard
 
-"nodemailer@npm:^6.8.0":
-  version: 6.8.0
-  resolution: "nodemailer@npm:6.8.0"
-  checksum: e1827df714d207a00f1bf8012e767826862467b72440fc9c37cf238a14d01a4c591b7657f4d1805bfb2764883c07aa9f2e31ee96a5fec51ccf1e6ad6dd01bd1d
+"nodemailer-mailgun-transport@npm:^2.1.5":
+  version: 2.1.5
+  resolution: "nodemailer-mailgun-transport@npm:2.1.5"
+  dependencies:
+    consolidate: ^0.15.1
+    form-data: ^4.0.0
+    mailgun.js: ^8.0.1
+  checksum: b003b00e428e9896f2e1e9892a3a78d3c2220e34c1e8766e2eeed9a8154a9edf41ac0eb95c2e7631a59314db81f90d2e7f72b2a5d82e3450c22caf050685e9c4
+  languageName: node
+  linkType: hard
+
+"nodemailer@npm:^6.9.5":
+  version: 6.9.5
+  resolution: "nodemailer@npm:6.9.5"
+  checksum: e39282795e09f0685691b1511f74e2dc4703ba6ecd55d964c2f8a1b54591e5b284228c90cd6a203b498a5a1ea2610415306e8d7eda0b3cd9ebdcb210f05b2846
   languageName: node
   linkType: hard
 
@@ -6570,6 +6635,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"url-join@npm:^4.0.1":
+  version: 4.0.1
+  resolution: "url-join@npm:4.0.1"
+  checksum: f74e868bf25dbc8be6a8d7237d4c36bb5b6c62c72e594d5ab1347fe91d6af7ccd9eb5d621e30152e4da45c2e9a26bec21390e911ab54a62d4d82e76028374ee5
+  languageName: node
+  linkType: hard
+
 "util-deprecate@npm:^1.0.1":
   version: 1.0.2
   resolution: "util-deprecate@npm:1.0.2"