On Mon, 19 Apr 1993 12:18:02 EDT Elliott Parker <3ZLUFUR@CMUVM> wrote:
>In the following bounce, could somebody tell me what
>"Not a typewriter" means?
> ----------
>Received: by ooz.backbone.uoknor.edu (5.64/A/UX-3.00)
>        id AC00880; Mon, 19 Apr 93 11:28:31 CDT
>Subject: Returned mail: Host unknown
>   ----- Transcript of session follows -----
>421 kittyhawk.ecn.uoknor.edu.tcpld... Deferred: Not a typewriter
>550 <[log in to unmask]>... Host unknown: Not a typewriter
>421 mailhost.ecn.uoknor.edu.tcpld... Deferred: Not a typewriter
>550 <[log in to unmask]>... Host unknown: Not a typewriter
>421 essex.ecn.uoknor.edu.tcpld... Deferred: Not a typewriter
>550 <[log in to unmask]>,<[log in to unmask]>,
     <[log in to unmask]>... Host unknown: Not a typewriter
>   (rest deleted)
 
The Internet host 'ESSEX.ECN.UOKNOR.EDU' has two MX-records:
 - preference=0,  MX= MailHost.ECN.UOKNOR.EDU,
 - preference=10, MX= OOZ.BACKBONE.uoknor.edu
 
When I connect to the "preferred" MX-host ('MailHost'),
and entery 'VRFY cchan', I don't get that message.
It's **only** the "secondary" MX-host ('OOZ'), which gives that message.
 
So, I've asked the "postmasters" at UOKNOR.EDU to correct the problem.