在Heroku Devise的生产模式中，符合要求的邮件无法发送

用户创建和身份validation我使用了devise gem 。 这在本地机器的开发模式下完美运行。 但是，当我尝试在heroku上执行sign up确认邮件无法发送。

使用ruby-2.0.0-p353 ， Rails 4.1.1 ， devise 3.3.0

这是我设置的代码。

配置/环境/ development.rb

 Rails.application.configure do config.cache_classes = false config.eager_load = false config.consider_all_requests_local = true config.action_controller.perform_caching = false config.action_mailer.raise_delivery_errors = false config.active_support.deprecation = :log config.active_record.migration_error = :page_load config.assets.debug = true config.action_mailer.default :charset => "utf-8" config.assets.raise_runtime_errors = true config.action_mailer.default_url_options = { :host => 'localhost:3000' } config.action_mailer.delivery_method = :smtp config.action_mailer.smtp_settings = { address: 'smtp.gmail.com', port: 587, domain: 'gmail.com', user_name: '[e-mail]', password: 'mygmail_password', authentication: 'plain', enable_starttls_auto: true } end 

配置/初始化/ devise.rb

 Devise.setup do |config| config.mailer_sender = '[e-mail]' config.mailer = 'Devise::Mailer' require 'devise/orm/active_record' config.case_insensitive_keys = [ :email ] config.strip_whitespace_keys = [ :email ] config.skip_session_storage = [:http_auth] config.stretches = Rails.env.test? ? 1 : 10 config.reconfirmable = true config.expire_all_remember_me_on_sign_out = true config.password_length = 8..128 config.reset_password_within = 6.hours config.sign_out_via = :delete end 

配置/环境/ production.rb

 Rails.application.configure do config.cache_classes = true config.eager_load = true .... config.action_mailer.default_url_options = { :host => 'myapp.herokuapp.com' } config.action_mailer.delivery_method = :smtp config.action_mailer.perform_deliveries = true config.action_mailer.raise_delivery_errors = true config.action_mailer.smtp_settings = { address: 'smtp.gmail.com', port: 587, domain: 'gmail.com', user_name: '[e-mail]', password: 'mygmail_password', authentication: 'plain', enable_starttls_auto: true } end 

哪里弄错了请指点我。 我已经尝试了尽可能多的Stack Overflow的答案，但仍然没有解决这个问题。 在heroku上通过SMTP发送邮件有什么问题吗？ 或者是否需要特殊设置？

点击“注册”按钮后，Heroku的最新日志

 2014-09-06T06:48:13.756842+00:00 app[web.1]: => Booting WEBrick 2014-09-06T06:48:13.797030+00:00 app[web.1]: sh: /usr/sbin/sendmail: not found 2014-09-06T06:48:13.756849+00:00 app[web.1]: => Rails 4.1.1 application starting in production on http://0.0.0.0:21502 2014-09-06T06:48:13.756853+00:00 app[web.1]: => Notice: server is listening on all interfaces (0.0.0.0). Consider using 127.0.0.1 (--binding option) 2014-09-06T06:48:13.756855+00:00 app[web.1]: => Ctrl-C to shutdown server 2014-09-06T06:48:14.174309+00:00 heroku[router]: at=info method=GET path="/" host=myapp.herokuapp.com request_id=388f2377-2fad-4037-96b1-eef5030be562 fwd="182.74.176.166" dyno=web.1 connect=2ms service=13ms status=302 bytes=1247 2014-09-06T06:48:14.481684+00:00 heroku[router]: at=info method=GET path="/users/sign_in" host=myapp.herokuapp.com request_id=ab6e0be6-f8a5-46f4-a6fc-57e2a73f5ca2 fwd="182.74.176.166" dyno=web.1 connect=0ms service=16ms status=200 bytes=1371 2014-09-06T06:48:14.833216+00:00 heroku[router]: at=info method=GET path="/assets/application-48345e63cf2df682255dab96ad27acc5.css" host=myapp.herokuapp.com request_id=6674d9b3-0e4d-4d24-8707-fab74033a762 fwd="182.74.176.166" dyno=web.1 connect=1ms service=5ms status=200 bytes=1142 2014-09-06T06:48:14.848893+00:00 heroku[router]: at=info method=GET path="/assets/application-9737ed55f72b58c2701f914dfe7a1231.js" host=myapp.herokuapp.com request_id=80169f38-89d7-415b-af71-187352243ec3 fwd="182.74.176.166" dyno=web.1 connect=1ms service=8ms status=200 bytes=1126 2014-09-06T06:48:17.705442+00:00 heroku[router]: at=info method=GET path="/assets/lang_arrow-3726918349ac40bab6e1d3bc05c0c024.png" host=myapp.herokuapp.com request_id=1e87561d-70ea-4a07-8be3-61f4e5edc7f6 fwd="182.74.176.166" dyno=web.1 connect=1ms service=7ms status=200 bytes=1136 2014-09-06T06:48:17.715978+00:00 heroku[router]: at=info method=GET path="/assets/ic_home-5eb9a6c895eec3a1d1afe6feff06a70d.png" host=myapp.herokuapp.com request_id=460e077c-1271-4555-84c6-e9d1f9450751 fwd="182.74.176.166" dyno=web.1 connect=0ms service=4ms status=200 bytes=1133 2014-09-06T06:48:17.700930+00:00 heroku[router]: at=info method=GET path="/assets/ic_blue_use-42ea0542433fa44fdaa200c3362c1e54.png" host=myapp.herokuapp.com request_id=3472c43a-0e69-4e2d-8589-3e897cab56a0 fwd="182.74.176.166" dyno=web.1 connect=1ms service=4ms status=200 bytes=1137 2014-09-06T06:48:17.746773+00:00 heroku[router]: at=info method=GET path="/assets/ic_pwd-24fdf7b9c435224ca949327a4253de43.png" host=myapp.herokuapp.com request_id=89759d8e-cd49-41f1-afd0-a8defebb09df fwd="182.74.176.166" dyno=web.1 connect=2ms service=7ms status=200 bytes=1132 2014-09-06T06:48:17.706910+00:00 heroku[router]: at=info method=GET path="/assets/logo1-2739445b7d155e432153465ea9b1051b.png" host=myapp.herokuapp.com request_id=c94bb0c3-7be7-4a7f-80db-400b4f81b14c fwd="182.74.176.166" dyno=web.1 connect=1ms service=3ms status=200 bytes=1131 2014-09-06T06:48:17.732645+00:00 heroku[router]: at=info method=GET path="/assets/ic_user-f60cef6628a5ad2519bc5501b7b37303.png" host=myapp.herokuapp.com request_id=946d07fa-9c4b-4fbe-bb1c-88900aa864ec fwd="182.74.176.166" dyno=web.1 connect=0ms service=3ms status=200 bytes=1133 2014-09-06T06:48:18.010596+00:00 heroku[router]: at=info method=GET path="/assets/ic_lang.png" host=myapp.herokuapp.com request_id=a3612759-9d19-4155-a3dd-af944ce8804d fwd="182.74.176.166" dyno=web.1 connect=1ms service=6ms status=200 bytes=1142 2014-09-06T06:48:18.171791+00:00 heroku[router]: at=info method=GET path="/assets/bottom_box_shedow.png" host=myapp.herokuapp.com request_id=960df91c-df6a-492e-b9d7-34b616350c82 fwd="182.74.176.166" dyno=web.1 connect=1ms service=6ms status=200 bytes=1152 2014-09-06T06:50:32+00:00 heroku[slug-compiler]: Slug compilation started 2014-09-06T06:50:41.363184+00:00 heroku[router]: at=info method=GET path="/users/sign_up" host=myapp.herokuapp.com request_id=ceed37ed-2039-4344-a295-ba70a3992125 fwd="182.74.176.166" dyno=web.1 connect=1ms service=19ms status=200 bytes=1069 2014-09-06T06:50:41.955994+00:00 heroku[router]: at=info method=GET path="/assets/application-9737ed55f72b58c2701f914dfe7a1231.js" host=myapp.herokuapp.com request_id=e610246f-fe29-4cc3-98b1-45ae7be9e737 fwd="182.74.176.166" dyno=web.1 connect=0ms service=12ms status=200 bytes=952 2014-09-06T06:50:41.954472+00:00 heroku[router]: at=info method=GET path="/assets/application-48345e63cf2df682255dab96ad27acc5.css" host=myapp.herokuapp.com request_id=f77cecea-4ef6-44d1-b8b8-c23258c85e52 fwd="182.74.176.166" dyno=web.1 connect=1ms service=6ms status=200 bytes=968 2014-09-06T06:50:44.754330+00:00 heroku[router]: at=info method=GET path="/assets/lang_arrow-3726918349ac40bab6e1d3bc05c0c024.png" host=myapp.herokuapp.com request_id=9512cf22-ec9f-4103-9dca-d7c19395b57c fwd="182.74.176.166" dyno=web.1 connect=2ms service=9ms status=200 bytes=962 2014-09-06T06:50:44.756381+00:00 heroku[router]: at=info method=GET path="/assets/ic_blue_use-42ea0542433fa44fdaa200c3362c1e54.png" host=myapp.herokuapp.com request_id=3bb129c3-efb7-4ffe-8ce9-fc55ef8980ea fwd="182.74.176.166" dyno=web.1 connect=1ms service=7ms status=200 bytes=963 2014-09-06T06:50:44.752882+00:00 heroku[router]: at=info method=GET path="/assets/logo1-2739445b7d155e432153465ea9b1051b.png" host=myapp.herokuapp.com request_id=ed6f1ac8-de0c-411f-96d3-0cc0152cb3e4 fwd="182.74.176.166" dyno=web.1 connect=1ms service=8ms status=200 bytes=957 2014-09-06T06:50:45.137468+00:00 heroku[router]: at=info method=GET path="/assets/ic_home-5eb9a6c895eec3a1d1afe6feff06a70d.png" host=myapp.herokuapp.com request_id=c8ffaf06-4366-4e51-bec1-4338e029d3c1 fwd="182.74.176.166" dyno=web.1 connect=1ms service=74ms status=200 bytes=959 2014-09-06T06:50:45.140658+00:00 heroku[router]: at=info method=GET path="/assets/bottom_box_shedow.png" host=myapp.herokuapp.com request_id=969e6034-df02-4052-9e58-7ad24f488098 fwd="182.74.176.166" dyno=web.1 connect=1ms service=76ms status=200 bytes=978 2014-09-06T06:50:45.139103+00:00 heroku[router]: at=info method=GET path="/assets/ic_lang.png" host=myapp.herokuapp.com request_id=33e32985-c96b-46b6-a509-5cb2e3879972 fwd="182.74.176.166" dyno=web.1 connect=1ms service=74ms status=200 bytes=968 2014-09-06T06:50:59+00:00 heroku[slug-compiler]: Slug compilation finished 2014-09-06T06:50:59.120074+00:00 heroku[api]: Deploy 182fc29 by [e-mail] 2014-09-06T06:50:59.120141+00:00 heroku[api]: Release v34 created by [e-mail] 2014-09-06T06:50:59.242867+00:00 heroku[web.1]: State changed from up to starting 2014-09-06T06:51:01.575987+00:00 heroku[web.1]: Stopping all processes with SIGTERM 2014-09-06T06:51:02.136903+00:00 app[web.1]: /app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:170:in `select' 2014-09-06T06:51:02.136912+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:264:in `start' 2014-09-06T06:51:02.136920+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:40:in `run_command!' 2014-09-06T06:51:02.137129+00:00 app[web.1]: [2014-09-06 06:51:02] INFO WEBrick::HTTPServer#start done. 2014-09-06T06:51:02.136906+00:00 app[web.1]: /app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:170:in `block in start' 2014-09-06T06:51:02.136913+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.1/lib/rails/commands/server.rb:69:in `start' 2014-09-06T06:51:02.136921+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.1/lib/rails/commands.rb:17:in `' 2014-09-06T06:51:02.211217+00:00 app[web.1]: Exiting 2014-09-06T06:51:02.136896+00:00 app[web.1]: [2014-09-06 06:51:02] FATAL SignalException: SIGTERM 2014-09-06T06:51:02.136910+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/handler/webrick.rb:14:in `run' 2014-09-06T06:51:02.136918+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:76:in `server' 2014-09-06T06:51:02.137041+00:00 app[web.1]: [2014-09-06 06:51:02] INFO going to shutdown ... 2014-09-06T06:51:02.639632+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 51499 -e production` 2014-09-06T06:51:03.107653+00:00 heroku[web.1]: Process exited with status 143 2014-09-06T06:51:02.136907+00:00 app[web.1]: /app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:32:in `start' 2014-09-06T06:51:02.136915+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:81:in `block in server' 2014-09-06T06:51:02.136923+00:00 app[web.1]: bin/rails:8:in `require' 2014-09-06T06:51:02.136909+00:00 app[web.1]: /app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:160:in `start' 2014-09-06T06:51:02.136917+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:76:in `tap' 2014-09-06T06:51:02.136925+00:00 app[web.1]: bin/rails:8:in `' 2014-09-06T06:51:06.524264+00:00 app[web.1]: [2014-09-06 06:51:06] INFO WEBrick 1.3.1 2014-09-06T06:51:06.524289+00:00 app[web.1]: [2014-09-06 06:51:06] INFO ruby 2.0.0 (2014-05-08) [x86_64-linux] 2014-09-06T06:51:06.524724+00:00 app[web.1]: [2014-09-06 06:51:06] INFO WEBrick::HTTPServer#start: pid=2 port=51499 2014-09-06T06:51:06.662354+00:00 heroku[web.1]: State changed from starting to up 2014-09-06T06:51:23.329820+00:00 heroku[router]: at=info method=GET path="/users/sign_up" host=myapp.herokuapp.com request_id=19fcdeb0-308c-4fcc-90a2-baa520c21de2 fwd="182.74.176.166" dyno=web.1 connect=2ms service=447ms status=200 bytes=895 2014-09-06T06:51:23.683160+00:00 heroku[router]: at=info method=GET path="/assets/application-9737ed55f72b58c2701f914dfe7a1231.js" host=myapp.herokuapp.com request_id=ad05eecf-eabd-4538-9614-e63afd5b75f4 fwd="182.74.176.166" dyno=web.1 connect=0ms service=19ms status=200 bytes=952 2014-09-06T06:51:23.664871+00:00 heroku[router]: at=info method=GET path="/assets/application-48345e63cf2df682255dab96ad27acc5.css" host=myapp.herokuapp.com request_id=f9f113e8-92ce-44d7-9c16-8f788c9af2c9 fwd="182.74.176.166" dyno=web.1 connect=1ms service=7ms status=200 bytes=968 2014-09-06T06:51:26.460696+00:00 heroku[router]: at=info method=GET path="/assets/ic_blue_use-42ea0542433fa44fdaa200c3362c1e54.png" host=myapp.herokuapp.com request_id=7a9280a0-383a-49b5-a2af-5be986566e76 fwd="182.74.176.166" dyno=web.1 connect=1ms service=6ms status=200 bytes=963 2014-09-06T06:51:26.465890+00:00 heroku[router]: at=info method=GET path="/assets/lang_arrow-3726918349ac40bab6e1d3bc05c0c024.png" host=myapp.herokuapp.com request_id=f5f2ec34-7bca-44df-a163-000e53436504 fwd="182.74.176.166" dyno=web.1 connect=1ms service=12ms status=200 bytes=962 2014-09-06T06:51:26.475100+00:00 heroku[router]: at=info method=GET path="/assets/ic_home-5eb9a6c895eec3a1d1afe6feff06a70d.png" host=myapp.herokuapp.com request_id=8d3a0f1f-fe6d-47fa-a0b3-79e3900b08b4 fwd="182.74.176.166" dyno=web.1 connect=1ms service=9ms status=200 bytes=959 2014-09-06T06:51:26.468458+00:00 heroku[router]: at=info method=GET path="/assets/logo1-2739445b7d155e432153465ea9b1051b.png" host=myapp.herokuapp.com request_id=ab70c12b-792d-4296-bed3-861991390560 fwd="182.74.176.166" dyno=web.1 connect=0ms service=8ms status=200 bytes=957 2014-09-06T06:51:26.509971+00:00 heroku[router]: at=info method=GET path="/assets/bottom_box_shedow.png" host=myapp.herokuapp.com request_id=0a0eee8c-08e7-4894-ba50-b3643cfade38 fwd="182.74.176.166" dyno=web.1 connect=1ms service=21ms status=200 bytes=978 2014-09-06T06:51:26.494661+00:00 heroku[router]: at=info method=GET path="/assets/ic_lang.png" host=myapp.herokuapp.com request_id=20620263-c241-409d-bcc0-a7e25be6658f fwd="182.74.176.166" dyno=web.1 connect=1ms service=17ms status=200 bytes=968 2014-09-06T06:54:04.602299+00:00 heroku[router]: at=info method=POST path="/users" host=myapp.herokuapp.com request_id=5750cd98-6521-47b7-8293-8f3f60487325 fwd="182.74.176.166" dyno=web.1 connect=1ms service=1215ms status=500 bytes=1356 2014-09-06T07:56:24.562965+00:00 heroku[web.1]: Idling 2014-09-06T07:56:24.563494+00:00 heroku[web.1]: State changed from up to down 2014-09-06T07:56:27.358380+00:00 app[web.1]: /app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:32:in `start' 2014-09-06T07:56:27.358370+00:00 app[web.1]: [2014-09-06 07:56:27] FATAL SignalException: SIGTERM 2014-09-06T07:56:27.358378+00:00 app[web.1]: /app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:170:in `block in start' 2014-09-06T07:56:27.358410+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/handler/webrick.rb:14:in `run' 2014-09-06T07:56:27.358413+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.1/lib/rails/commands/server.rb:69:in `start' 2014-09-06T07:56:27.358417+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:76:in `tap' 2014-09-06T07:56:27.358376+00:00 app[web.1]: /app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:170:in `select' 2014-09-06T07:56:27.358408+00:00 app[web.1]: /app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:160:in `start' 2014-09-06T07:56:27.358412+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:264:in `start' 2014-09-06T07:56:27.358423+00:00 app[web.1]: bin/rails:8:in `require' 2014-09-06T07:56:27.358418+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:76:in `server' 2014-09-06T07:56:27.358586+00:00 app[web.1]: [2014-09-06 07:56:27] INFO WEBrick::HTTPServer#start done. 2014-09-06T07:56:27.358424+00:00 app[web.1]: bin/rails:8:in `' 2014-09-06T07:56:27.358510+00:00 app[web.1]: [2014-09-06 07:56:27] INFO going to shutdown ... 2014-09-06T07:56:27.358415+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:81:in `block in server' 2014-09-06T07:56:27.393017+00:00 app[web.1]: => Rails 4.1.1 application starting in production on http://0.0.0.0:51499 2014-09-06T07:56:27.393021+00:00 app[web.1]: => Notice: server is listening on all interfaces (0.0.0.0). Consider using 127.0.0.1 (--binding option) 2014-09-06T07:56:27.358421+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.1/lib/rails/commands.rb:17:in `' 2014-09-06T07:56:27.358420+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:40:in `run_command!' 2014-09-06T07:56:27.393010+00:00 app[web.1]: => Booting WEBrick 2014-09-06T07:56:27.393019+00:00 app[web.1]: => Run `rails server -h` for more startup options 2014-09-06T07:56:27.393024+00:00 app[web.1]: Exiting 2014-09-06T07:56:27.393023+00:00 app[web.1]: => Ctrl-C to shutdown server 2014-09-06T07:56:26.834911+00:00 heroku[web.1]: Stopping all processes with SIGTERM 2014-09-06T07:56:28.211024+00:00 heroku[web.1]: Process exited with status 143 2014-09-06T08:12:20.238449+00:00 heroku[web.1]: State changed from down to starting 2014-09-06T08:12:20.238449+00:00 heroku[web.1]: Unidling 2014-09-06T08:12:23.775242+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 9281 -e production` 2014-09-06T08:12:27.222560+00:00 app[web.1]: [2014-09-06 08:12:27] INFO WEBrick 1.3.1 2014-09-06T08:12:27.223057+00:00 app[web.1]: [2014-09-06 08:12:27] INFO WEBrick::HTTPServer#start: pid=2 port=9281 2014-09-06T08:12:27.222588+00:00 app[web.1]: [2014-09-06 08:12:27] INFO ruby 2.0.0 (2014-05-08) [x86_64-linux] 2014-09-06T08:12:27.659363+00:00 heroku[web.1]: State changed from starting to up 2014-09-06T08:12:29.901156+00:00 heroku[router]: at=info method=POST path="/users" host=myapp.herokuapp.com request_id=cca41a60-a02a-451e-b277-22bc155ebed0 fwd="182.74.176.166" dyno=web.1 connect=1ms service=1599ms status=500 bytes=1359 

Answer 1

 /usr/sbin/sendmail: not found 

这意味着您的Linux安装没有安装sendmail包

如果您使用的是VPS，我建议您使用sudo apt-get install sendmail安装sendmail软件包。 然而，当你在Heroku上时，我会质疑这是否是问题本身。

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设计

没有看到任何其他错误，我建议您执行以下操作：

1. 将SMTP更改为第三方提供商（Mandrill的Sendgrid）
2. 测试是否“不”发送电子邮件将有助于注册过程
3. 查看是否在数据库中创建了用户

令人惊讶的是，我将首先从#3开始 – 我估计用户正在创建，它只是无法发送。 我不确定这个（日志不是结论性的），所以我更愿意看看是否正在创建用户对象：

 $ heroku run rails c $ user = User.last [user credentials displayed] 

这将使您能够查看users表中的最后一个条目。 如果条目是您提交的内容，它将进一步支持我的想法，即电子邮件系统由于某种原因不起作用。

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接下来，您需要确保邮件设置正确。 为此，您可以使用以下附加组件 （推荐Mandrill）：

 #config/environments/production.rb config.action_mailer.smtp_settings = { :address => "smtp.mandrillapp.com", :port => 25, # ports 587 and 2525 are also supported with STARTTLS :enable_starttls_auto => true, # detects and uses STARTTLS :user_name => ENV["MANDRILL_USERNAME"], :password => ENV["MANDRILL_PASSWORD"], # SMTP password is any valid API key :authentication => 'login', # Mandrill supports 'plain' or 'login' :domain => 'yourdomain.com', # your domain to identify your server when connecting } 

删除default_url_option和delivery_method设置

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最后，您的问题的核心似乎是发送电子邮件。

我认为这是一封确认电子邮件，您可以使用Devise禁用。 我以前从未这样做过，所以这里有一个参考资料 ：

 user = User.new user.skip_confirmation! 

Answer 2

嘿，非常感谢@Rich Peck和@Mandeep的努力。 我现在已经解决了这个问题..通过加大搜索力度。 我刚刚添加了一行，它的工作原理..

 config.action_mailer.smtp_settings = { address: 'smtp.gmail.com', port: 587, domain: 'gmail.com', user_name: '[e-mail]', password: 'mygmail_password', authentication: 'plain', enable_starttls_auto: true, :openssl_verify_mode => 'none' # This line added and it works fine }