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Re: switching from exim to postfix

On Wed, 2012-05-02 at 19:23 +1000, Russell Coker wrote:
> On Wed, 2 May 2012, Jon Dowland <jmtd@debian.org> wrote:
> > On Wed, May 02, 2012 at 07:05:14PM +1000, Russell Coker wrote:
> > > Having mail be silently corrupted is not acceptable.
> > 
> > Can you expand on "silently corrupted", here? Is that when you re-encode
> > the mail and send it on as 7-bit, or when you leave it alone and send it
> > as 8 bit to a host that doesn't advertise accepting 8-bit?
> When you send 8 bit mail to a host that only supports 7 bit then it will be 
> corrupted, usually without any notification of what happened - definitely 
> silent corruption.
> When you re-encode mail and send it on IFF the message is DKIM signed it could 
> be considered to be silent corruption as the change will usually count as 
> breakage.

So DKIM is broken by design.  Not sure why anyone should care to work
around this.


Ben Hutchings
Design a system any fool can use, and only a fool will want to use it.

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