[GRLUG] Mailserver configuration

Adam Tauno Williams awilliam at whitemice.org
Thu Mar 22 09:35:45 EDT 2012


On Wed, 2012-03-21 at 16:12 -0500, L. V. Lammert wrote:
> Looking at proposing upgrades of mailservers for a couple of clients, and
> I have beeen trying to decide what would be 'best practice' for one of
> them that has a Charter link where their IP is in a block that I believe
> is on more than one blacklist.

If you have a static IP from Charter or Comcast it is probably *not* on
the black lists;  these networks separate their dynamic and static
ranges and publish those ranges appropriately.

If you are attempting to host *anything* on a dynamic IP - don't.

> What options have folks used/recommend for handling incoming email? Put
> the server offsite? Run a frontend store/forward server? If the latter,
> what about outbound email?

There isn't anything special;  a static IP should be able to receive
connections on port TCP/25 without any issues.  I do this on static
Comcast customers,  don't recall if I've done so on Charter.   Otherwise
if the last-mile network is a concern SMTP is trivial to host on
something like a Linnode or you can get excellent hosting on Open
[standard compliant] from companies like FastMail.fm




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