5 files changed, 20 insertions, 11 deletions

diff --git a/server/controllers/api/config.ts b/server/controllers/api/config.ts
index 43b20e078..dd06a0597 100644
--- a/server/controllers/api/config.ts
+++ b/server/controllers/api/config.ts
@@ -65,7 +65,7 @@ async function getConfig (req: express.Request, res: express.Response) {
       }
     },
     email: {
-      enabled: Emailer.Instance.isEnabled()
+      enabled: Emailer.isEnabled()
     },
     contactForm: {
       enabled: CONFIG.CONTACT_FORM.ENABLED
diff --git a/server/initializers/checker-after-init.ts b/server/initializers/checker-after-init.ts
index 72d846957..955d55206 100644
--- a/server/initializers/checker-after-init.ts
+++ b/server/initializers/checker-after-init.ts
@@ -10,6 +10,7 @@ import { getServerActor } from '../helpers/utils'
 import { RecentlyAddedStrategy } from '../../shared/models/redundancy'
 import { isArray } from '../helpers/custom-validators/misc'
 import { uniq } from 'lodash'
+import { Emailer } from '../lib/emailer'
 
 async function checkActivityPubUrls () {
   const actor = await getServerActor()
@@ -32,9 +33,19 @@ async function checkActivityPubUrls () {
 // Some checks on configuration files
 // Return an error message, or null if everything is okay
 function checkConfig () {
-  const defaultNSFWPolicy = CONFIG.INSTANCE.DEFAULT_NSFW_POLICY
+
+  if (!Emailer.isEnabled()) {
+    if (CONFIG.SIGNUP.ENABLED && CONFIG.SIGNUP.REQUIRES_EMAIL_VERIFICATION) {
+      return 'Emailer is disabled but you require signup email verification.'
+    }
+
+    if (CONFIG.CONTACT_FORM.ENABLED) {
+      logger.warn('Emailer is disabled so the contact form will not work.')
+    }
+  }
 
   // NSFW policy
+  const defaultNSFWPolicy = CONFIG.INSTANCE.DEFAULT_NSFW_POLICY
   {
     const available = [ 'do_not_list', 'blur', 'display' ]
     if (available.indexOf(defaultNSFWPolicy) === -1) {
@@ -68,6 +79,7 @@ function checkConfig () {
     }
   }
 
+  // Check storage directory locations
   if (isProdInstance()) {
     const configStorage = config.get('storage')
     for (const key of Object.keys(configStorage)) {
diff --git a/server/initializers/checker-before-init.ts b/server/initializers/checker-before-init.ts
index a7bc7eec8..7905d9ffa 100644
--- a/server/initializers/checker-before-init.ts
+++ b/server/initializers/checker-before-init.ts
@@ -15,7 +15,7 @@ function checkMissedConfig () {
     'storage.redundancy', 'storage.tmp',
     'log.level',
     'user.video_quota', 'user.video_quota_daily',
-    'cache.previews.size', 'admin.email',
+    'cache.previews.size', 'admin.email', 'contact_form.enabled',
     'signup.enabled', 'signup.limit', 'signup.requires_email_verification',
     'signup.filters.cidr.whitelist', 'signup.filters.cidr.blacklist',
     'redundancy.videos.strategies', 'redundancy.videos.check_interval',
diff --git a/server/lib/emailer.ts b/server/lib/emailer.ts
index 9b1c5122f..f384a254e 100644
--- a/server/lib/emailer.ts
+++ b/server/lib/emailer.ts
@@ -18,7 +18,6 @@ class Emailer {
   private static instance: Emailer
   private initialized = false
   private transporter: Transporter
-  private enabled = false
 
   private constructor () {}
 
@@ -27,7 +26,7 @@ class Emailer {
     if (this.initialized === true) return
     this.initialized = true
 
-    if (CONFIG.SMTP.HOSTNAME && CONFIG.SMTP.PORT) {
+    if (Emailer.isEnabled()) {
       logger.info('Using %s:%s as SMTP server.', CONFIG.SMTP.HOSTNAME, CONFIG.SMTP.PORT)
 
       let tls
@@ -55,8 +54,6 @@ class Emailer {
         tls,
         auth
       })
-
-      this.enabled = true
     } else {
       if (!isTestInstance()) {
         logger.error('Cannot use SMTP server because of lack of configuration. PeerTube will not be able to send mails!')
@@ -64,8 +61,8 @@ class Emailer {
     }
   }
 
-  isEnabled () {
-    return this.enabled
+  static isEnabled () {
+    return !!CONFIG.SMTP.HOSTNAME && !!CONFIG.SMTP.PORT
   }
 
   async checkConnectionOrDie () {
@@ -374,7 +371,7 @@ class Emailer {
   }
 
   sendMail (to: string[], subject: string, text: string, from?: string) {
-    if (!this.enabled) {
+    if (!Emailer.isEnabled()) {
       throw new Error('Cannot send mail because SMTP is not configured.')
     }
 
diff --git a/server/middlewares/validators/server.ts b/server/middlewares/validators/server.ts
index d82e19230..d85afc2ff 100644
--- a/server/middlewares/validators/server.ts
+++ b/server/middlewares/validators/server.ts
@@ -50,7 +50,7 @@ const contactAdministratorValidator = [
         .end()
     }
 
-    if (Emailer.Instance.isEnabled() === false) {
+    if (Emailer.isEnabled() === false) {
       return res
         .status(409)
         .send({ error: 'Emailer is not enabled on this instance.' })