Author: Frank Elsner Date: To: exim-users Subject: Re: [exim] errors by sender verifying
On Wed, 29 Aug 2007 09:32:53 +0200 Margrit Lottmann URZ-N wrote: > A great mail provider "r-online.de"
> doesn't allow since yesterday our verify procedure for sender checking:
> here our configure part:
> and now 1 error message:
> host mail.uni-magdeburg.de [22.214.171.124]: 550-Callback setup failed while
> verifying <xxxxxx@??? <mailto:email@example.com>>
> 550-(result of an earlier callout reused).
> 550-The initial connection, or a HELO or MAIL FROM:<> command was
> 550-rejected. Refusing MAIL FROM:<> does not help fight spam, disregards
> 550-RFC requirements, and stops you from receiving standard bounce
> 550-messages. This host does not accept mail from domains whose servers
> 550-refuse bounces.
> 550 Sender verify failed
> Do you know what is bas at our exim configuration ???
If I understand the message correct, the configuration at "t-online"
is broken by not accepting empty envelopes.
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