I have been working on this for 2 weeks. I am so frustrated. I think VERIZON FIOS is blocking all my EMAIL ports. I have a FEDORA 20 LINUX server setup with SENDMAIL. and I am unable to send email out to my YAHOO or GMAIL inbox.
I have setup everything. Forwarded ports on my ROUTER. allowed ports in my IPTABLES, assigned the port in my sendmail.mc file. forwarded ports in my LINUX server. It is still not sending mail out to my YAHOO inbox.
Anyone know VERIZON is blocking all the ports?