I can send email to my local domain but not outside my domain

February 8, 2018 586 views
Email CentOS

I am using CentOS Linux release 7.4.1708 (Core)
forwarded all the required ports needed for Sentora to function correctly on my router
Installed Sentora Control panel
setup domains and sub domains
created 2 mailbox
mail can be sent and received from those 2 email ID's
but cannot send email from those ID's to other domain emails like gmail and hotmails
i went through lots of blogs and videos. serverfault, stackoverflow, etc
trying from last 2 weeks but still stucked
please show me some way so that i can figure out

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