how to allow mobile user to send email with getting blocked

Harondel J. Sibble mailscanner at
Mon Jun 20 17:20:53 IST 2011

Just so I am clear, you are suggesting I put this in postfix on the 
mailscanner machine, rather than in postfix on the protected imap server 
behind mailscanner right?

As to changing the headers in the mailclient, it doesn't appear that K-9 on 
Android supports that  :-(

On 20 Jun 2011 at 8:52, Markus Nilsson wrote:

> In postfix I solve this by setting
> smtpd_sasl_authenticated_header = yes That by-passes network checks in SA if
> the header comes from a trusted source, and the host receiving the connection
> from your remote users is trusted I guess?
> This disables RBL-checks at SA, if you need even more negative scoring, you
> can modify the score for ALL_TRUSTED
> /Markus
> ----- Ursprungligt meddelande -----
> Från: "Harondel J. Sibble" <mailscanner at>
> Till: "MailScanner discussion" <mailscanner at>
> Skickat: fredag, 17 jun 2011 18:22:10
> Ämne: Re: how to allow mobile user to send email with getting blocked 
> Didn't find that one in my search, thanks.
> Not sure I understand fully, I use postfix and haven't touched sendmail in
> years. Are you suggesting adding an additional header at the mail client level
> that is then processed by the mta/ms?
> I'n not convinced that's something I can fully control on the various mail
> clients on the phones, it's just the same as using ssl client certs. Not all
> devices support it.

Harondel J. Sibble 
Sibble Computer Consulting
Creating Solutions for the small and medium business computer user.
help at (use pgp keyid 0x3AD5C11D)
(604) 739-3709 (voice)

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