Port 25 and Static/Dynamic IP for Listserve SW

[Martin Ewing]

If I understand the OP and further discussion, I am doing more or less
what he wants to do.  Let me summarize our situation with regard to
outgoing e-mail, including Mailman lists:

1.  Our ISP is AT&T (DSL) which uses smtp.att.yahoo.com.  They require
you to send to port 465 with an SSL session.  I think this can be done
via Postfix on our server, along with stunnel, but I have not been
able to make it work completely.  So, we dump AT&T!

2.  We have a web hosting account with 1and1.com.  (Quite inexpensive
and full-featured as long as you don't need to have your hand held
very much.)  They provide a simpler email environment: smtp.1and1.com,
accepting mail via port 25 or port 587.  We have used both ports.
(AT&T Yahoo will unblock port 25 on request.)  [1and1 also provides
their own mail list service, but it did not fit our needs.]

3.  We configure Postfix with TLS authentication, using a 1and1 email
account which we can set up.  It's a pain the first time, but there
are many how-to guides that help you through this.

Having done this, we can send email to anybody from our server, via
'mail', 'evolution', 'thunderbird', or 'mailman'.   The ISP (rather
our web hosting service) does not care who has originated the email
(i.e., some 3rd party sending mail to a Mailman list), they only want
to know who your Postfix server is.  The "dynamic address issue" is no
problem.  (We do have a dynamic IP and we use Dyndns.org free DDNS to
give ourselves a DNS name, but this is not required.)

Once you have your server set up for "native" email services (Postfix
running in authenticated "smarthost" mode -- "smarthost" meaning that
all mail to be delivered outside your local network goes to a remote
smtp server)  --- you are ready to start setting up Mailman.  That's a
little world all to itself, but you should not have to worry about the
ISP any more.

For some of my applications, I have found Yahoo and Google "groups" to
be an adequate solution, and much easier to administer.

Martin

On Sat, Jul 18, 2009 at 11:05 PM, Derek Broughton<derek at pointerstop.ca> wrote:
> Piper wrote:
>
>> Are you saying then that they are personally reading the mail to decide if
>> it is "spam" or a public listserve?
>
> No, we're saying that unless you submit your messages to your ISPs own
> server, they often just won't get sent.  When they do get sent, they often
> won't get received.
>
> --
> derek
>
>
>
> --
> ubuntu-users mailing list
> ubuntu-users at lists.ubuntu.com
> Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-users
>