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ERROR: Unable to connect to SMTP Host '6.0.97.253': (110) Connection timed out
Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /var/www/cacti/plugins/nectar/nectar_functions.php:1147) in /var/www/cacti/plugins/nectar/nectar_functions.php on line 358
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /var/www/cacti/plugins/nectar/nectar_functions.php:1147) in /var/www/cacti/plugins/nectar/nectar_functions.php on line 358
Warning: Cannot modify header information - headers already sent by (output started at /var/www/cacti/plugins/nectar/nectar_functions.php:1147) in /var/www/cacti/plugins/nectar/nectar_webapi.php on line 218
I can only use SMTP with a given server-ip; other settings are not working in my environment.
(/usr/sbin/sendmail installed, no authentication, no username,DNS installed)
Maybe you need to open the port 110 to the SMTP server hope that will work. However, you can try to search in online using the googe search I think you can found there some tips that related in your problem. Try also to check the configuration setting hope there something to change in the setting.