* Stroller <[EMAIL PROTECTED]> wrote:

Hi,

<snip>
> In this case I am getting a bounce message from a mailing-list server  
> that says:
> 
> <[EMAIL PROTECTED]>: host mg1.uky.edu[128.163.184.178] said: 554  
> 5.7.1 Mail
>     from domain yahoo.co.uk not accepted from host  
> compaq.stroller.uk.eu.org
>     (213.152.39.90) - see http://www.uky.edu/email/ (in reply to  
> RCPT TO
>     command)

maybe he only accepts only authenticated users to relay ?

> I want to sign up to this list using my @yahoo.co.uk address, you  
> see, so the logical thing to do is have postfix deliver everything  
> with a from address @yahoo.co.uk using yahoo's SMTP server as relayhost. 

Please do not mix up (outgoing) relay of some provider and (incoming) MX
for some domain. They're completely different things (which only *may* 
point to the same host). 

> I understand that this is at least a little bit of a pain  
> <http://archives.neohapsis.com/archives/postfix/2004-08/0618.html> so  
> for me it's easier to send everything going to lsv.uky.edu via Yahoo.

Doesn't postfix have some feature like sendmail's mailertable ?

> I had expected this to be easy enough. Yahoo tells me that my server  
> settings are:
>   Outgoing Mail Server (SMTP):   smtp.mail.yahoo.co.uk

<snip>

>   Jun 22 02:56:20 compaq postfix/smtpd[6213]: 309B31263BB:  
> client=unknown[192.168.1.103]
>   Jun 22 02:56:20 compaq postfix/cleanup[6216]: 309B31263BB: message- 
> id=<[EMAIL PROTECTED]>
>   Jun 22 02:56:20 compaq postfix/qmgr[6174]: 309B31263BB:  
> from=<[EMAIL PROTECTED]>, size=579, nrcpt=1 (queue active)
>   Jun 22 02:56:20 compaq postfix/smtp[6217]: warning:  
> valid_hostname: empty hostname
>   Jun 22 02:56:20 compaq postfix/smtp[6217]: warning: malformed  
> domain name in resource data of MX record for smtp.mail.yahoo.co.uk:
>   Jun 22 02:56:20 compaq postfix/smtp[6217]: warning:  
> valid_hostname: empty hostname
>   Jun 22 02:56:20 compaq postfix/smtp[6217]: warning: malformed  
> domain name in resource data of MX record for  
> smtp1.mail.vip.ukl.yahoo.com:

yeah, postfix gets confused by the "." MX reference for the domain 
smtp1.mail.vip.ukl.yahoo.com. Although it is an unclean configuration, 
I do not see what this has to do with your relay ... your postfix
just has to pull its mails (for yahoo.co.uk) to smtp.mail.yahoo.co.uk,
and it has an proper A record, so what does it need the MX record for ?


BTW: if you don't get it fixed, you may get an UUCP account for 
relay at my site.


cu
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