Replace mailjet with mailgun (#180)

lib/admin/config.js

@@ -192,7 +192,7 @@ function fetchData () {
         {code: 'mock-sms', display: 'Mock SMS', class: 'sms'},
         {code: 'mock-id-verify', display: 'Mock ID verifier', class: 'idVerifier'},
         {code: 'twilio', display: 'Twilio', class: 'sms'},
-        {code: 'mailjet', display: 'Mailjet', class: 'email'},
+        {code: 'mailgun', display: 'Mailgun', class: 'email'},
         {code: 'all-zero-conf', display: 'Always 0-conf', class: 'zeroConf', cryptos: ['BTC', 'ZEC', 'LTC', 'DASH', 'BCH']},
         {code: 'no-zero-conf', display: 'Always 1-conf', class: 'zeroConf', cryptos: ALL_CRYPTOS},
         {code: 'blockcypher', display: 'Blockcypher', class: 'zeroConf', cryptos: ['BTC']},

lib/plugins/email/mailgun/mailgun.js

@@ -0,0 +1,21 @@
+const Mailgun = require('mailgun-js')
+
+const NAME = 'Mailgun'
+
+function sendMessage ({apiKey, domain, fromEmail, toEmail}, rec) {
+  const mailgun = Mailgun({apiKey, domain})
+
+  const emailData = {
+    from: `Lamassu Server ${fromEmail}`,
+    to: toEmail,
+    subject: rec.email.subject,
+    text: rec.email.body
+  }
+
+  return mailgun.messages().send(emailData)
+}
+
+module.exports = {
+  NAME,
+  sendMessage
+}

lib/plugins/email/mailjet/mailjet.js

@@ -1,23 +0,0 @@
-const Mailjet = require('node-mailjet')
-
-const NAME = 'Mailjet'
-
-function sendMessage (account, rec) {
-  const mailjet = Mailjet.connect(account.apiKey, account.apiSecret)
-  const sendEmail = mailjet.post('send')
-
-  const emailData = {
-    FromEmail: account.fromEmail,
-    FromName: 'Lamassu Server',
-    Subject: rec.email.subject,
-    'Text-part': rec.email.body,
-    Recipients: [{'Email': account.toEmail}]
-  }
-
-  return sendEmail.request(emailData)
-}
-
-module.exports = {
-  NAME,
-  sendMessage
-}