On Tuesday, April 24, 2018 3:56:06 PM EDT J.W. Foster wrote: > I am trying once again to get an email server to run on my server. I NEED a > qualified tutorial or some real assistance in getting it operational and > secure. I am aware that there are MANY primers or docs on this. Problem is > they like most are done for an individuals system and are not really > designed for my system. So here is what I'm working with: > 1. all IP addresses are DHCP regulated by Spectrum internet.
<<snip>> No offense ment, but without a static IP address for mail to be sent to, you anot able to run a mail server. Why not? Think of it this way: you live on a street with a row of houses (to make this simple, don't consider multiple streets or different blocks with the same house numbers as your block.). You are in house #1. "Snail Mail" can be sent to you as long as house #1 is specified. Every couple of nights, someone comes along and takes the numbers off of the houses and puts them back on randomly. Now mail going to you (#1) may be delivered to a different house that now has the #1 on it. DHCP is like that, with an added twist: When IP address change, in order for you to get the e-mail an association between your IP-address and your physicla computer, the change has to be broadcast to all the IP servers on the Internet before you will be able to receive mail again. That change can take days. So, step 1 for you is to either spend the money on a static IP address or check out one of the services that will show the Internet one IP address for you, and will keep track of yours when it changes. My expericence with those is that you will, from time to time, lose e-mail. If you are serious about setting up a mail server, then complete step 1. Mark