invalid header: missing required header field

[gerry at massat.net]

On 2018-02-09 22:53, Voytek wrote:
> I send a similar email once or twice a week, normally, don't have any
> issues, today, got a "Delivery status notification, invalid header
> section: missing required header field" from my own server/amavisd:
> 
> so, in the amavisd warning message, 'from' is blank, in header in sent
> folder, from is 'normal', has my name/email
> 
> was it just a 'glitch' ?
> or what went wrong ? have I screwed up my amavisd setup ?
> 
> I've been using K9 mail client for ages, never struck such issue
> ----------------------
> "Delivery status notification, invalid header section: missing required
> header field
> From:	"Content-filter at geko.sbt.net.au" <postmaster at geko.sbt.net.au>
> 
> Your message WAS SUCCESSFULLY RELAYED to:
>   <someone at tld.au>
> This delivery report was generated by the program amavisd-new at host
> geko.sbt.net.au. Our internal reference code for your message is
> 22738-05/Tw8RKTuHo9Kk
> 
> INVALID HEADER: MISSING REQUIRED HEADER FIELD
>   Missing required header field: "From"
> Return-Path: <voytek at sbt.net.au>
> From:
> User-Agent: K-9 Mail for Android
> Subject: xyz
> 
> MISSING REQUIRED HEADER FIELD
> 
>   The RFC 5322 document specifies rules for forming internet messages.
>   Section '3.6. Field Definitions' specifies that certain header fields
>   are required (origination date field and the "From:" originator 
> field). "
> -----------------
> 
> looking at my sent mail header, it shows:
> -----------------
> Date: Sat, 10 Feb 2018 15:30:03 +1100
> From: Voytek <voytek at sbt.net.au>
> To: aaaaaa
> Subject: xyz
> User-Agent: K-9 Mail for Android
> Message-ID: <5E1A453C-93DB-4147-95E9-B423F1CF5226 at sbt.net.au>
> MIME-Version: 1.0
> Content-Type: multipart/mixed; 
> boundary="----J99IMONX16ZRDCJD272V08X0LFLC15"
> Content-Transfer-Encoding: 7bit
> -----------------
> from 'bounce' message:
> ----------------
> Return-Path: <voytek at sbt.net.au>
> Received: from nexus7 (110-175-246-167.tpgi.com.au [110.175.246.167])
>         by geko.sbt.net.au (Postfix) with ESMTPSA id 1EED86667133
>         for <someone at tld.au>; Sat, 10 Feb 2018 15:30:07 +1100
> (AEDT)
> Date: Sat, 10 Feb 2018 15:30:03 +1100
> User-Agent: K-9 Mail for Android
> MIME-Version: 1.0
> Content-Type: multipart/mixed; 
> boundary="----J99IMONX16ZRDCJD272V08X0LFLC15"
> Content-Transfer-Encoding: 7bit

So why does my Thunderbird show your message date as: 12/31/1969 6:00PM?
Your headers from your Sent folder do not match what I see in your post, 
here is a snippet showing a Date that looks unusual to me:

Message-ID: <dd03a1bcc7c83dbfe18bcd59f700aec5.squirrel at geko.sbt.net.au>
Date: 1518238414
Subject: invalid header: missing required header field
 From: "Voytek" <lists at sbt.net.au>
To: amavis-users at amavis.org
User-Agent: SquirrelMail/1.5.2 [SVN]