From: Terry Carmen (terrycnysupport.com)
Date: Thu Jan 10 2008 - 11:39:34 CST

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

Jason Ledford wrote:
>
> Hello all,
>
>
>
> I am getting this message when trying to send an email to a specific
> domain
>
> <fakeuserfakedomain.com>: host mail3.fakedomain.com[XXX.XXX.4.26]
> said: 554
>
> Transaction Failed Sender Refused due to lack of security (in reply to
>
> MAIL
>
> FROM command)
>
>
>
>
>
> What exactly does this mean. What security are they looking for? If
> you need any more information from me I would be happy to give it.
> This is also only happening for this domain, all other mail is flowing
> as normal. I can telnet to the mail server in question but as soon as
> I enter the mail from command it gives me that error. Any help would
> be appreciated.
>

The error code means the other system doesn't want to talk to you. The
server might require TLS or other security or authentication, however
the reason could be almost anything.

You would need to contact the postmaster or admin for that system for an
actual explanation.

Terry

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]