Re: Palo Alto firewalls and DNS delays (OT)

[David Gillett <gillettdavid () FHDA EDU>]

  I recall (fondly) a recommendation that HTML emails should be answered in PostScript.

David Gillett
CISSP CCNP


-----Original Message-----
From: Valdis Kletnieks [mailto:Valdis.Kletnieks () VT EDU] 
Sent: Wednesday, March 13, 2013 9:32 AM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: Re: [SECURITY] Palo Alto firewalls and DNS delays

On Wed, 13 Mar 2013 16:03:19 -0000, Julian Y Koh said:
> On Mar 13, 2013, at 09:42 , Ken Connelly <Ken.Connelly () UNI EDU>
>  wrote:
> > Already received one query about this...  mailserv is old and will 
> > barf on html-only messages.  The subscribe message needs to be 
> > plain-text or at least multipart/mixed.
>
> As God intended.  :):)

Vernon Schryver made the point that the vast majority of multipart/alternative mail is in fact incorrectly generated, 
the logic being that if it includes a text/plain and text/html, there's two possibilities:

1) The semantic content of the two is identical.  In this case the text/html is superfluous and should not have been 
sent.

2) The semantic content is *not* identical.  In that case, one of the two parts (probably the text/plain) is misleading 
and should not have been sent.