php - Swiftmailer: Connection could not be established with host smtp.gmail.com [Connection timed out #110]

Question

I'm posting because I've already gone through the solutions posted in other questions on here but they haven't helped.

What I am trying to do is send email using Swiftmailer through Google Apps for Business Gmail but I keep getting this error:

Connection could not be established with host smtp.gmail.com [Connection timed out #110]

I know the code is fine because it works on my local machine but not on the production server.

What I have tried so far:

• Enabled OpenSSL.
• Unblocked account from Google captcha.
• Used an Application Specific Password.
• Whitelisted Gmail SMTP IP addresses

Configuration:

# Swiftmailer Configuration
swiftmailer:
    transport:  smtp
    encryption: ssl
    auth_mode:  login
    host:       smtp.gmail.com
    username:   contact@mydomain.com
    password:   applicationspecificpassword
    port:       465

What else can I try? Could this be a DNS issue since I am using Gmails SMTP MX records instead of the servers.

Answer 1

The following steps worked for me :

1. Check if httpd_can_sendmail is on , run this getsebool httpd_can_sendmail

   • When you get: httpd_can_sendmail --> off , run setsebool -P httpd_can_sendmail 1
   • When you get: httpd_can_sendmail --> on that's fine move on step 2.

2. Check also if httpd_can_network_connect is on, run getsebool httpd_can_network_connect

   • When you get httpd_can_network_connect --> off run setsebool -P httpd_can_network_connect 1
   • When you get: httpd_can_network_connect --> on that's fine move on step 3.
3. Use the following settings for smtp : 'host' => '64.233.166.108' 'port' => '465'

I'm using Centos