Can't send mail on 16.04 - DigitalOcean

(Jack Spangenberg) #1

I’ve been looking for the answer all day, nothing.

  • I’m doing a fresh install via the first rails app guide on github.
  • Using a 1GB DigitalOcean droplet
  • Using NameCheap’s private email server.

Here is my app.yml:


  ## Uncomment if you want the container to be started with the same
  ## hostname (-h option) as specified above (default "$hostname-$config")

  ## TODO: List of comma delimited emails that will be made admin and developer
  ## on initial signup example ','

  ## TODO: The SMTP mail server used to validate new accounts and send notifications
  # SMTP ADDRESS, username, and password are required
  # WARNING the char '#' in SMTP password can cause problems!
  #DISCOURSE_SMTP_ENABLE_START_TLS: true           # (optional, default true)

Would appreciate any help on this.
P.S. I ran the more command on my Discourse log, it says Mail Sent!

(Mecanicos Argentinos) #2

Me paso y coloque el puerto 2525

(Jack Spangenberg) #3

Didn’t work. Before I even checked the log I did telnet 2525 and I got hit with:

telnet: Unable to connect to remote host: Connection refused

(Jack Spangenberg) #4

Also ran sudo ufw allow 2525/tcp @Mecanicos_Argentinos

(Stephen) #5

Don’t DO block port 25 on new accounts now?

Afaik Mailgun on a secure port is still fine, otherwise you’ll need to contact support.

(Jay Pfaffman) #6

Can you telnet to port 587 of If not, you’ll need to open a ticket with Digital OCean to get them to unblock the port, or get to accept connections at port 2525.

(Jack Spangenberg) #7

Port 587 works. I contacted DO about this a few hours ago, havent heard anything. This has happened with multiple VPS hosts.

(Jay Pfaffman) #8

Oops. I didn’t notice this before.

You need to check the logs at, as it’s accepting mail from Discourse but not delivering it.

Or it’s in SPAM.

(Jack Spangenberg) #9

Tried this tutorial

Got this nasty mess:

Error connecting to Redis on localhost:6379 (Errno::ECONNREFUSED) subscribe fail
ed, reconnecting in 1 second. Call stack ["/var/www/discourse/vendor/bundle/ruby
/2.4.0/gems/redis-4.0.1/lib/redis/client.rb:344:in `rescue in establish_connecti
on'", "/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/redis-4.0.1/lib/redis/cl
ient.rb:328:in `establish_connection'", "/var/www/discourse/vendor/bundle/ruby/2
.4.0/gems/redis-4.0.1/lib/redis/client.rb:99:in `block in connect'", "/var/www/d
iscourse/vendor/bundle/ruby/2.4.0/gems/redis-4.0.1/lib/redis/client.rb:291:in `w
ith_reconnect'", "/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/redis-4.0.1/l
ib/redis/client.rb:98:in `connect'", "/var/www/discourse/vendor/bundle/ruby/2.4.
0/gems/redis-4.0.1/lib/redis/client.rb:363:in `ensure_connected'", "/var/www/dis
course/vendor/bundle/ruby/2.4.0/gems/redis-4.0.1/lib/redis/client.rb:219:in `blo
ck in process'", "/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/redis-4.0.1/l
ib/redis/client.rb:304:in `logging'", "/var/www/discourse/vendor/bundle/ruby/2.4
.0/gems/redis-4.0.1/lib/redis/client.rb:218:in `process'", "/var/www/discourse/v
endor/bundle/ruby/2.4.0/gems/redis-4.0.1/lib/redis/client.rb:118:in `call'", "/v
ar/www/discourse/vendor/bundle/ruby/2.4.0/gems/redis-4.0.1/lib/redis.rb:889:in `
block in get'", "/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/redis-4.0.1/li
b/redis.rb:45:in `block in synchronize'", "/usr/local/lib/ruby/2.4.0/monitor.rb:
214:in `mon_synchronize'", "/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/red
is-4.0.1/lib/redis.rb:45:in `synchronize'", "/var/www/discourse/vendor/bundle/ru
by/2.4.0/gems/redis-4.0.1/lib/redis.rb:888:in `get'", "/var/www/discourse/vendor
in `process_global_backlog'", "/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/
message_bus-2.1.4/lib/message_bus/backends/redis.rb:321:in `block in global_subs
cribe'", "/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/message_bus-2.1.4/lib
/message_bus/backends/redis.rb:334:in `global_subscribe'", "/var/www/discourse/v
endor/bundle/ruby/2.4.0/gems/message_bus-2.1.4/lib/message_bus.rb:530:in `global
_subscribe_thread'", "/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/message_b
us-2.1.4/lib/message_bus.rb:478:in `block in new_subscriber_thread'"]
Job exception: Error connecting to Redis on localhost:6379 (Errno::ECONNREFUSED)

It says “Mail Sent” 4 times at the bottom of my log.
Here is my complete config:

(Jack Spangenberg) #10

Uh Ok. I got the email… but I got 4 of them? Could this be from previous tries