Good Answers!

I think I know what's going on now. There are 2 different "internet entities" involved. ATT is your Internet Service Provider, providing connectivity to the Internet. Your web site, http://826michigan.org, is hosted by the website hosting company Dreamhost.

ATT provides a login id/password, and I believe also "additional email" ids (which I've never used myself so I'm not sure.) If you wish to send outgoing mail through the ATT SMTP server, you'll need that id.

You can also send mail through your web site hosting company. They have also provided you with a login id/password to manage the web site. And also email accounts of the form "userid@826michigan.org". To send outgoing mail through the Dreamhost SMTP server, try pointing your program at mail.826michigan.org. Be aware that your info@826michigan.org email address may be an alias for another email address.

I learned a lot about what Dreamhost provides on these pages:

This ping shows http://826michigan.org being hosted on a Dreamhost machine: 

gmargo@tesla 899$ ping -c 1 826michigan.org
PING 826michigan.org (69.163.186.21) 56(84) bytes of data.
64 bytes from apache2-goo.tirane.dreamhost.com (69.163.186.21): icmp_s
+eq=1 ttl=49 time=28.2 ms

--- 826michigan.org ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 28.293/28.293/28.293/0.000 ms

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In reply to Re^5: SMTP authentication misery by gmargo
in thread SMTP authentication misery by cypress

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