Sendmail, simple mail list problem

2004-11-20 Thread Alan Curtis
I have set up sendmail to use my ISP outgoing mail server as a relay 
for mail from my server using the instructions I found here

http://www.leo.org/~barner/freebsd/articles/mailsetup/article.html
I use dyndns so that everyone can find myserver (as 
myserver.dyndns.net). I can send and receive mail on my server.

I am also using a simple mailing list with about 15 subscribers that I 
set up using a mail alias
(i.e. with the line 'mylist: : include:/usr/home/alan/lists/mylist.txt')

I can send mail to anyone on the list by sending mail to 
[EMAIL PROTECTED] from any of my email accounts and from my 
account at my ISP (call it [EMAIL PROTECTED]). Other users have also 
successfully sent mail to the list. However, a subset of the users also 
use my ISP and their mail to the list gets bounced by the ISP server.

The error message in the bounced email is
553 You are not authorized to send mail as [EMAIL PROTECTED]
501 5.6.0 Data format error
So [EMAIL PROTECTED] and [EMAIL PROTECTED] can send mail 
to the list but not [EMAIL PROTECTED].

Any suggestions on how to fix this?
Thanks
Alan
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Re: Sendmail, simple mail list problem

2004-11-20 Thread Charlie Schluting
Alan Curtis wrote:
553 You are not authorized to send mail as [EMAIL PROTECTED]
501 5.6.0 Data format error
So [EMAIL PROTECTED] and [EMAIL PROTECTED] can send mail 
to the list but not [EMAIL PROTECTED].

Any suggestions on how to fix this?
Sounds like your ISP published SPF records, and sites that do SPF 
checking are blocking.
This shouldn't happen if you're sending all mail through your ISP's mail 
server... unless you're ..well I don't know.

Not enough info.
Use real domain names in your questions.
This isn't a freebsd question, though.
-Charlie.
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