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0 pointsbigiain6y ago0 comments

> My claim was that sending electronic mail is a solved problem, because it is.

Agreed. I mean, I can _probably_ remember enough to be able to send mail using just telnet without even needing to look anything up. (And that mail, without any mime parts or urls - it very very likely to not fall into any of the spam filtering on my inbound email accounts...)

0 comments

greglindahl6y ago

In the modern era, lots of mailservers run software that looks for weirdnesses in incoming email. I don't know, but I'd suspect that the typing delays of using telnet to send mail are likely to trigger their defenses.

bigiainOP6y ago

SO I just tested. After working out that on macOS I now need to use nc -c instead of telnet... I _can_ send mail manually, but it _does_ end up in gmails's spam folder saying "Why is this message in spam? It is similar to messages that were identified as spam in the past."

  Iain-2:~ iain$ nc -c gmail-smtp-in.l.google.com 25
  220 mx.google.com ESMTP k5si5682618pls.209 - gsmtp
  EHLO elided.org
  250-mx.google.com at your service, [202.171.181.100]
  250-SIZE 157286400
  250-8BITMIME
  250-STARTTLS
  250-ENHANCEDSTATUSCODES
  250-PIPELINING
  250-CHUNKING
  250 SMTPUTF8
  MAIL FROM: <bigiain@elided.org>
  250 2.1.0 OK k5si5682618pls.209 - gsmtp
  RCPT TO: <bigiain@gmail.com>
  250 2.1.5 OK k5si5682618pls.209 - gsmtp
  DATA
  354  Go ahead k5si5682618pls.209 - gsmtp
  Subject: Test
  From: bigiain@elided.org
  To: bigiain@gmail.com
  Date: Fri, 31 Jan 2020 13:07:00 +1100
  
  Foo baz nah
  
  .
  
  250 2.0.0 OK  1580436443 k5si5682618pls.209 - gsmtp
  QUIT
  221 2.0.0 closing connection k5si5682618pls.209 - gsmtp
  Iain-2:~ iain$

wolco6y ago

I wonder why google treats this simple email as spam. It contains nothing that should trigger the spam filter aside from where it came from.

3 more replies

arein26y ago

Some years ago I wrote my email in a forum, available to crawlers. I’ve been getting spam ever since.

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