getting mail to work
jeffrey at goldmark.org
Sun Mar 11 22:28:27 UTC 2007
[mailed and posted]
On Mar 11, 2007, at 10:45 AM, Ed Zwart wrote:
> I own my_domain.com. I've paid a hoster for the last couple years,
> but that's ending in a week or so. Meanwhile, I've used dyndns to
> point foo.homedns.org to my IP.
I am going to add my voice to those suggesting that you use your
ISP's mail server for outgoing mail.
There are a number of reasons. First of all, if you are on a dynamic
IP, it is very likely that your ISP blocks outgoing STMP traffic that
doesn't go via their own mail server. That is, they won't allow
"direct to MX" mailing from dynamic addresses.
Another reason is that it just isn't a good idea to run your own
direct to MX mail system, unless you have some real expertise in how
mail transport works. Professionally, I set up mail servers for
small and medium sized businesses, and in more and more cases, I
actually suggest that they use outside mail servers for their out
going mail. (Generally, I think that ISPs tend to do really poor
jobs with email and that it is best to avoid being locked into your
ISP for much, so I recommend services like fastmail.fm.)
Let me also add, that while I do set up and manage mail servers for
others, I don't do direct to MX from home myself. (Well, I do for a
mailing list server I run, but not for my normal everyday mailing.)
So even with the expertise needed, I don't really recommend running
your own MX (incoming) or own Direct to MX (outgoing) servers unless
you have a specific need to fill.
With postfix you just need to specify
and then run
# postfix reload
Then just send a test, eg
$ mail -s test your at external-email-addres < /dev/null
to see what happens.
If your ISP wants authentication for handling your outgoing mail,
which describes how to configure postfix for that on Mac OS X. For
FreeBSD just replace
in all of the paths mentioned with
Jeffrey Goldberg http://www.goldmark.org/jeff/
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