[GRLUG] Sendmail configuration

[Ben Rousch]

On Wed, Mar 19, 2008 at 11:22 PM, Jeff DeFouw <jeffd at i2k.com> wrote:

> On Thu, Mar 20, 2008 at 03:36:39AM +0530, Deepan wrote:
> > I am using sendmail via php mail function to send
> > emails. However few servers reject my mails with
> > the error 'Sender address rejected: Domain not
> > found', since mails from my server are sent as
> > email at localhost.localdomain. How do I change this
> > to a valid domain name ? We only own a public IP.
> > we dont really have a domain name, is it possible
> > to use IP ?
>

You are unlikely to successfully deliver to the big three free email
providers (Gmail, Yahoo mail, and Hotmail) unless you have:
1) a real domain name
2) on a non-dynamic IP address
3) with a legitimate reverse DNS
4) and have SPF configured
5) and are using a non-spam-friendly server host

If you don't want to go through all that, your best bet is to forward your
emails through your ISP's servers using use PHP Mailer (
http://phpmailer.codeworxtech.com/ ).
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