Re: [exim] error 451-Could not complete sender verify callo…

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Autor: Renaud Allard
Datum:  
To: exim-users
Betreff: Re: [exim] error 451-Could not complete sender verify callout ??


Johann Spies wrote:
> On Mon, Mar 10, 2008 at 03:02:57PM +0200, Gregory Machin wrote:
>> Hi 
>> I'm trying to subscribe to a list from a valid that I use every day what have I done wrong ? or mis configured in my attempt to block spam ..
> $exim4 -bt greg@???
> nslookup for greg@???
> greg@???
>   router = dnslookup, transport = remote_smtp
>   host mail01.ct-net.org [196.211.39.147] MX=30
>   host mail02.ct-net.org [196.211.39.148] MX=40
>   host fake01.ct-net.org [unknown]        MX=50 ** unusable **

>
> Maybe the last line is your problem.
>


I don't think so as it seems no service is running there:
$ telnet fake01.ct-net.org 25
telnet: fake01.ct-net.org: no address associated with name
fake01.ct-net.org: Unknown host

However, there may be some problems with the greylisting on main
servers. Maybe the delays are not suitable for use with overloaded
servers such as sourceforge.