[Clug-tech] sendmail

[Gustin Johnson]

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Shawn Grover wrote:
> Not sure if it applies here, but... I recall some ISPs (such as Telus)
> were blocking port 25 from residential lines.  If you have a business
> package, this should be a non-issue.  But...  I believe if they are
> blocking port 25, they have another port open for a similar purpose (553

Typically port 587 is used for this.  There is nothing that requires
authentication, you have to configure your MTA to do that.  It is
usually a good idea, along with TLS since you really don't want
usernames and passwords flying around in the clear.  Google supports
both on the submission port (587) so you could use them as a smart host
an bypass telus.  Here is an example:
http://wiki.freaks-unidos.net/gmail-smarthost

> comes to mind but is probably wrong - I need sleep).  I believe that
> port requires you to use authentication though (better in the long run
> anyways...)  Hmm... come to think of it, I believe this is a mail CLIENT
> issue, not a server issue....
> 
It is equally applicable to servers connecting to smart hosts.  In this
case the mail server is acting as a client to another mail server.  If
his mail server is connecting directly to google and not to
smtp.telus.net, then his configuration is not working as all mail should
be directed at smtp.telus.net.  I have not used sendmail in more than 10
years so I cannot be of more help.

For the record Exim is my MTA of choice.  You could accomplish all of
this with Postfix as well, but I found Postfix to be awkward and
cumbersome in comparison to Exim.  YMMV.

> If this *is* the issue you are facing, check the archives for this list
> - it's come up once or twice in the past.  But I'm sure someone more
> knowledgeable will pipe up... (Gustin ???? lol)

William is the sendmail wizard.  I am sure there are others

Hth,

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