Default cPanel exim port connect problem

savinna

• January 05, 2017 22:42

-A cP-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 110 -j ACCEPT -A cP-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 25 -j ACCEPT -A cP-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 995 -j ACCEPT -A cP-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 465 -j ACCEPT -A cP-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 587 -j ACCEPT I use outlook ~ POP3 110, SSL 995 SMTP SSL 465, TLS 587 SMTP default port 25 <= can't use! why? Other port SSL TLS normal, Just 25 port can't connect ~ What happened?

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  cPanelMichael

  • January 06, 2017 20:18

  Other port SSL TLS normal, Just 25 port can't connect ~

  
  I recommend reaching out to your data center or hosting provider to verify if there's anything filtering port 25 traffic in their network or firewall rules. Providers will often block port 25 as a SPAM prevention technique. Thank you.

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  NOC_Serverpoint

  • January 09, 2017 19:28

  Hi, Please type the command : #exiwhat and see the ports exim listens. Also,make sure all your NIC addresses are static. Make sure your SMTP server has enabled those IPs to relay emails. Thanks,

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