16Mb... hmmm could be hitting a datasize limit (default 32mb IIRC)
	Have you tried calling sendmail as

csh -c 'limit datasize 65536 ; /usr/sbin/sendmail ${sendmail_flags}'

                   David/abs             (david@mono.org)

.---- I've been too drunk to love ----.--- I've been too drunk to remember -.
|          Too drunk to care          |     The hell of the night before    |
|  Looked like death, felt like Hell  |    I've been drinking myself blind  |
`------ Been the worse for wear ------'--- And still I'll drink some more --'

On Fri, 18 Oct 1996, Neil J. McRae wrote:

> 
> Has anyone else had procmail give these errors on NetBSD? Its
> majorly annoying... Anyone got a fix, procmail is called as the local
> delivery agent from sendmail. I don't get this on StunOS.
> 
> Cheers,
> Neil.
> --  
> Neil J. McRae. Alive and Kicking.          E A S Y N E T  G R O U P  P L C 
> neil@EASYNET.NET        NetBSD/sparc: 100% SpF (Solaris protection Factor)
>   Free the daemon in your computer!
>  [N.B.: I have no affilation with Cyberia or the CyberWorkers Unite Party]      
>