Failed to connect to server: Connection refused (111)

Post all of your settings in order to review that they are correct. Leave out personal information (i.e. real email address and password).

Try port 587 with TLS encryption protocol.

SMTP -> ERROR: Failed to connect to server: Connection refused (111)
SMTP Error: Could not connect to SMTP host.

I change the port 587 with TLS encryption protocol, but repeat the same error.

+1 on phpmailer. I converted all my sites to it a couple of months ago. Works flawlessly on gmail.

Perhaps your hosting account system wants you to use email of your domain like abc@yourdomain.com which is already setup one their email system. Try to use the follow setup. It worked for me. Your SMTP server should be relay based instead of normal smtp server like smtpout.secureserver.net:

SMTP Server: relay-hosting.secureserver.net
SMTP User: abc@yourdomain.com
SMTP Passwork: leave blank
SMTP Port: 25
SMTP Authentication: No
SMTP Encryption: None

Good luck

There are thousands of issues related to this already, if none of the solutions are work, please reopen.

#11 works for users that hosts sites in GoDaddy

I ran into the same problem with a Drupal 6 site, where the client uses Godaddy for hosting and Gmail for their email.

After spending a lot longer than I'd like to admit on this, I tried point #11 but it didn't work until I left the SMTP user as blank.

Under SMTP Auth Support settings:

SMTP server: relay-hosting.secureserver.net
SMTP port: 25
Use encrypted protocol: no

SMTP auth (make sure you set BOTH to blank)
--email: blank
--password: blank

Email from: {your@email.com}

I hope this helps!

You are my personal live saver, I was like 3 days looking for that anwers...

you are the best!!!, I´ve been working on this for weeks!, thank youuuuu!!!!

This saved me too!! Thanks a lot!

Just to confirm, this was the resolution to fix the SMTP problem on GoDaddy. It only took 3 days to find this solution.

Using

Digital Ocean Hosting
Ubuntu
LAMP

I fixed it by uninstall smtp module
Then only use PHP http://drupal.org/project/phpmailer

thanks geeksforpc..

It works for me too.

Great... I have fed up by this problem for last 2 days...

thank you https://www.drupal.org/user/976928

I have a lot of apologizing to Godaddy.... #14 worked (thanks billyroebuck). Actually godaddy was my backup I seem to have the same issue authenticating to an exchange server as well. Any idea why proper authentication does not work?

@billyroebuck, I made changes according to your configuration, but i still getting error. i am using prestashop, not php mailer.
Error: Please check your configuration
Connection could not be established with host relay-hosting.secureserver.net [Connection refused #111]
Please any one help,How to solve this error?

For my particular case connecting to Gmail, I need to let Gmail know that I was allowing "less secure apps" to access my gmail account (this was testing from local development setup). When I adjusted those settings in Gmail, everything worked as expected. https://support.google.com/accounts/answer/6010255?hl=en