[CentOS] Postfix setup

[Robert Moskowitz]

On 03/10/2013 11:12 PM, Keith Keller wrote:
> On 2013-03-11, Austin Einter <austin.einter at gmail.com> wrote:
>> Which one is preferred postfix or sendmail.
> I suspect this is mostly personal preference.  I prefer postfix because
> the configuration files are easier to read and write.
>
>> It says I need to disable firewall. Is it really required. Kindly let me
>> know.
> No, it is not required.  But you do need to accept TCP traffic on port
> 25 to your SMTP host.  Because you need to do this, you should make sure
> your SMTP server can not be used as an open relay, or you will find
> yourself on many blacklists.  Here's a reasonable tester I found:

Here is a list of ports I have open on my mail server:

HTTP                  80 & 443
SMTP                  25  & 587
IMAP                  143 & 993
POP3                 110 & 995
manageseive     4190