XPost: alt.comp.software.thunderbird, news.software.readers   
   From: robin_listas@es.invalid   
      
   On 2026-02-01 16:49, Frank Slootweg wrote:   
   > Carlos E.R.  wrote:   
   >> On 2026-02-01 15:21, J. P. Gilliver wrote:   
   >>> On 2026/1/31 18:2:38, Adam H. Kerman wrote:   
   > [...]   
   >>>> It's impossible for the newsreader to submit it because the newsreader   
   >>>> isn't an email client.   
   >>>   
   >>> Good point, which I hadn't thought of. (I've always used combined   
   >>> software - either one that does both like Turnpike or Thunderbird, or [I   
   >>> think - long ago!] a suite that combined them, like modified KA9Q.)   
   >>   
   >> In Linux (and Unix), any program can submit an email. It is part of the   
   >> system.   
   >   
   >    I don't know about Linux, but for 'Unix' it depends on how you define   
   > 'Unix'. AFAIR, before Berkeley Unix' sendmail, Unix only had 'mail[x]'   
   > which could only send/receive e-mail to/from the same local system.   
   > (Yes, there was UUCP-based e-mail, but that predates Internet mail.)   
   >   
   >    OTOH, in the very early 70s, we already used 'e-mail' before that term   
   > was even known and probably not even invented! :-) The world-wide   
   > intra-company system was called COMSYS, short for Communication System.   
   > In comparison, while Wikipedia doesn't give a year for UUCP-based   
   > e-mail, it probably came only it the late 70s and SMTP came only in   
   > 1983, a decade after 'us'. [1] [2]   
      
   I was surprised to find out that the Unix Real Time Reliable that was   
   used by the Lucent 5ESS phone switch had sendmail in it. The machine did   
   not have ethernet nor internet. I doubt it had unix accounts in normal   
   usage, but I assume it could have them.   
      
      
   Currently, in Linux, postfix does install a small sendmail binary that   
   has the minimal support so that programs can keep using the ancient method.   
      
      
   >   
   >> Of course, in many home systems this method is not configured and will fail.   
   >   
   >    On this mixed Windows/Cygwin system I use ssmtp(8), a send-only   
   > sendmail emulator, to send e-mail (mostly administrative e-mail from   
   > shell-scripts).   
   >   
   > [1]    
   > [2]    
      
      
   --   
   Cheers, Carlos.   
   ES🇪🇸, EU🇪🇺;   
      
   --- SoupGate-Win32 v1.05   
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