I'm pretty sure that you're right, that RedHat is
rejecting this as a spam check, i.e. that the mailing
host should be resolvable as the message origin. My
problem is that, as far as I can see, it is.
Depending upon what set of settings I use other mail
works from fitfully to pretty good. (And believe me,
I've tried a lot of settings.)
=Paul=
__________________________________
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Protect your identity with Yahoo! Mail AddressGuard
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--- Begin Message ---
Does mail to anywhere else work? Maybe rh.com is baulking at the www. as a
way to filter out would-be spammers.
<<JAV>>
---------- Original Message -----------
From: Paul Gillen <gillen1951@xxxxxxxxx>
To: Red Hat User List <redhat-list@xxxxxxxxxx>
Sent: Thu, 13 Nov 2003 12:11:13 -0800 (PST)
Subject: Mail error: reason: 550 5.0.0 You must use a valid mail server
> A home-hobbyist tries to set up sendmail. (No, I'm
> sticking with sendmail for now for obscure reasons of
> my own, please spare us comments on alternatives.)
>
> Mail to redhat gets a "reason: 550 5.0.0 You must use
> a valid mail server" in response:
>
> ------------
> The original message was received at Thu, 13 Nov 2003
> 14:25:15 -0500
> from paulgillen.riveralph.com [192.168.1.3]
>
> ----- The following addresses had permanent fatal
> errors -----
> <webmaster@xxxxxxxxxx>
> (reason: 550 5.0.0 You must use a valid mail
> server)
>
> ----- Transcript of session follows -----
> ... while talking to mx1.redhat.com.:
> >>> MAIL From:<Paul_Gillen@xxxxxxxxxxxxx>
> <<< 550 5.0.0 You must use a valid mail server
> 554 5.0.0 Service unavailable
>
> -------------------------
> Reporting-MTA: dns; www.riveralph.com
> Received-From-MTA: DNS; paulgillen.riveralph.com
> Arrival-Date: Thu, 13 Nov 2003 14:25:15 -0500
>
> Final-Recipient: RFC822; webmaster@xxxxxxxxxx
> Action: failed
> Status: 5.0.0
> Diagnostic-Code: SMTP; 550 5.0.0 You must use a valid
> mail server
> Last-Attempt-Date: Thu, 13 Nov 2003 14:25:16 -0500
>
> ====================================
> Presumably this is all DNS related.
>
> Noting:
> Reporting-MTA: dns; www.riveralph.com
> Received-From-MTA: DNS; paulgillen.riveralph.com
> Using nslookup (I know, I know) and setting the server
> to an Earthlink DNS server, for www.riveralph.com we
> get:
> > set type=any
> > www.riveralph.com
> Server: [207.69.188.185]
> Address: 207.69.188.185
>
> Non-authoritative answer:
> www.riveralph.com internet address =
> 66.47.111.74
>
> riveralph.com nameserver = dns11.register.com
> riveralph.com nameserver = dns12.register.com
> riveralph.com nameserver = www.riveralph.com
> dns11.register.com internet address =
> 216.21.234.76
> dns12.register.com internet address =
> 216.21.226.76
> www.riveralph.com internet address =
> 66.47.111.74
>
> For paulgillen.riveralph.com we get:
>
> > paulgillen.riveralph.com
> Server: [207.69.188.185]
> Address: 207.69.188.185
>
> Non-authoritative answer:
> paulgillen.riveralph.com internet address =
> 192.168.1.3
>
> riveralph.com nameserver = 207.69.188.186
> riveralph.com nameserver = ns.riveralph.com
> riveralph.com nameserver = 207.69.188.185
> >
>
> Looking for the mail exhanger we get:
>
> > set type=mx
> > riveralph.com
> Server: [207.69.188.185]
> Address: 207.69.188.185
>
> Non-authoritative answer:
> riveralph.com MX preference = 10, mail exchanger =
> www.riveralph.com
>
> riveralph.com nameserver = ns.riveralph.com
> riveralph.com nameserver = 207.69.188.185
> riveralph.com nameserver = 207.69.188.186
> >
>
> ================================
> Anyhow, both the MTAs, "www" the SMTP host and
> "paulgillen" the POP3 client, appear to be valid and
> resolvable.
>
> What am I missing? (Besides a few marbles for even
> attempting this.)
>
> =Paul=
>
> __________________________________
> Do you Yahoo!?
> Protect your identity with Yahoo! Mail AddressGuard
> http://antispam.yahoo.com/whatsnewfree
>
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