🚀 go-pugleaf

In article <Bsstnn.HAq@world.std.com> sandyb@world.std.com (Sandy Bendremer) writes:
>We are (still) trying to get a working sendmail installation on System V
>Release 4.  Our sendmail configuration file seems to test well, and we
>have sendmail running in the background.  Locally originated and outbound
>mail work fine!!
>
>We seem to have some problems with rmail!  When we replace /bin/rmail with
>the /usr/ucblib/rmail, all of our inbound uucp mail for local users is lost.
>The uucp control files X.xxxxx, etc look fine, but the messages just vanish,
>with no errors (that we know of).  Inbound mail for other systems on our
>network is processed by sendmail and delivered??  Any ideas on how to
>correctly deliver the local mail would be appreciated!!
>
>If we use the original /bin/rmail, and tell the mailsurr file to route 
>everything through sendmail, mail is delivered, but an extra From uucp
>header is added to the top of each message.  The real from header follows,
>but is prepended with a > symbol (such as: >From bob@host.com).  Why is this
>happening??

My theory is that the SMTP daemon is adding a From_ header, and the braindead 
rmail isn't even LOOKING for a From_ header, so it just slaps one on anyway. 
And, since the stock rmail is still basically a stone-age SysV/UUCP kinda 
beast at heart, it doesn't grok any of the RFC822 headers either, so it thinks 
everything is "message body", and therefore escapes the existing From_ into 
">From". Then, this whole mess (both a From_ AND a >From_ header, in other 
words) gets to sendmail, which stops its header-parsing once it hits the 
">From", remedially adds some "Apparently-To:" and "Apparently-From:" headers, 
etc. and voila! half your headers are now INSIDE your message, and the 
remaining headers look goofy. Thanks, USL. 

>Any help would be a BIG help!

I don't have a permanent fix yet, but there's always an ugly kludge. :-)

Change your /etc/mail/mailsurr to something like

'.+' '(.+)' '< /usr/ucblib/sendmail.wrapper \\1'

Then, in "sendmail.wrapper", or whatever, do something like

---

awk '{
        if (NR > 2) {
                print
                next
        }
        if (NR == 1) {
                firstline=$0
                weekday=$3
                month=$4
                monthday=$5
                time=$6
                timezone=$7
                year=$8
                remote=$NF
                next
        }
        if ($1 ~ /^>From/)
                printf("From %s!%s %s %s %s %s %s %s\n", remote, $2, weekday, month, monthday, time, timezone, year)
        else {
                print firstline
                print
        }
     }' | /usr/ucblib/sendmail $1

---

This will combine the double From_ headers into a single one, and keep
sendmail happy, until your vendor comes up with a permanent fix. At least, 
we've been running this hack for a coupla weeks and haven't seen any major 
problems yet...

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