wordpress is not sending emails
im using wordpress multisite and i set my following email settings from
Network > sites >setting
but unfortunately no mails are going. same details are working for another php application hosted on same server in another sub-domain. only difference is on that php application, i could setup authentication on, here no such option..
so i install check mail plugin to find out the cause of the issue, and on check-mail plugin, i can see my current email setting are as following.
Current mail settings
SendMail path (UNIX): /usr/sbin/sendmail -t -i
SMTP server (Windows): localhost
SMTP port (Windows): 25
Add X header: 1
now i cant understand why & from where this is coming. anyone can guide me to resolve this?