I have tried to enable personal gmail account as default os ticket email address. But when i am trying to save it it is getting error message. (Refer attachment). I tries all other Authentication types but getting same error. Email address is also correct. 
Email authentication error
Gmail's SMTP via Port 465 requires authentication. You must first configure the Authentication then you can enable and save the changes.
Cheers.
Hi Kevin, Thank you very much for your valuable feedback. It is getting same error even though i have reset and tried to config again. please refer attached screen shots
You may need to configure OAuth2:
If that still doesn’t work then your server is having issues. Maybe a firewall or blocked port or your host has external SMTP restrictions.
Cheers.
Thanks Kevin, i am using infinityfree to host helpdesk system and it is not allowing me to install plugins and getting below error message. Any alternative solution to overcome this issue
Fatal error: Uncaught RuntimeException: is_file(): open_basedir restriction in effect. File(/home/vol6_2/infinityfree.com/if0_38494588/htdocs/include/plugins/en_GB.phar/plugin.php) is not within the allowed path(s): (/php_sessions:/tmp:..:/var/www/errors:/home/vol6_2/infinityfree.com/if0_38494588/htdocs) in /home/vol6_2/infinityfree.com/if0_38494588/htdocs/include/class.plugin.php:257 Stack trace: #0 [internal function]: PluginManager::throwException(2, 'is_file(): open...', '/home/vol6_2/in...', 299) #1 /home/vol6_2/infinityfree.com/if0_38494588/htdocs/include/class.plugin.php(299): is_file('/home/vol6_2/in...') #2 /home/vol6_2/infinityfree.com/if0_38494588/htdocs/include/staff/plugin-add.inc.php(15): PluginManager::allInfos() #3 /home/vol6_2/infinityfree.com/if0_38494588/htdocs/scp/plugins.php(136): require('/home/vol6_2/in...') #4 {main} thrown in /home/vol6_2/infinityfree.com/if0_38494588/htdocs/include/class.plugin.php on line 257
Your host has restrictions configured in PHP that are preventing the plugin to load. Essentially you need to add the full plugin path to the open_basedir setting in your PHP INI, reload the web server, and retest. If you don’t know how reach out to your host and ask for help or guidance or documentation.
Cheers.
Thanks kevin. i have installed fresh installation with paid hosting provider and now i have problem of accessing helpdesk general url but i can access admin url without any issue.
ex :- itsupport.xyz.com (Unable to access) - it's getting error as "It appears you don't have
permission to access this page. 403 Error. Forbidden."
itsupport.xyz.com/scp (can access without any issue)
kindly help me to fixed this matter
Your web server is preventing access via rules or an application firewall, etc. You need to review your web server logs for the reason why or contact your hosting provider for further assistance.
Cheers.
Hi Kevin, as i checked with hosting provider they have re-checked and there is no any restrictions from their side. They said there can be some file missing or main page related file may be missing. Any idea to check this. Because admin page is working without any issue and i also guess some main page related file issue may be the reason.
- Best Answerset by KevinTheJedi
403 forbidden error comes directly from the web server and is thrown when the user is not allowed to access the page. This is more than likely due to web server configurations, firewall, etc. The only other thing it can be is missing/corrupted files or incorrect permissions/ownership on the files. Try re-uploading all the code files and retest.
Cheers.
Thanks kevin, due to some issue index.php file was not there. Once i copied it matter sorted