john larkin <jl@glen--canyon.com> wrote:I just emailed myself from one account using gmail, sent using postfix, to another account on gmail, using thunderbird internal system. No problem.
On Sat, 12 Sep 2026 11:20:56 -0400, "Edward Rawde"I haven't been able to contact anyone who uses gmail or google mail for
<invalid@invalid.invalid> wrote:
>"john larkin" <jl@glen--canyon.com> wrote in message>
news:mtpaalh6mup4r05gd8jq83d6ok6laaeg4s@4ax.com... >I sent some emails to
people regarding the equipment hazards that I > mentioned in the
"discharging caps" thread. Google refused to deliver > them. I must have
used forbidden words like "explode" or something.
>
There are many reasons why email may not deliver.
Had you emailed these people before?
Often.
>What did the bounce message say?>
mx.google.com gave this error:
This message was blocked because its content presents a potential
security issue. To review our message content and attachment content
guidelines, go to https://support.google.com.....
a couple of years now. Apparently they are demanding some
identification which my e-mailer doesn't give, so they just delete my
e-mail without explanation. I am not going to change my e-mailer to
suit them, expecially if it gives them information I have no control
over.
Currently i have to send e-mails to gmail users by firat posting them
to another computer and then forwarding them from there.
Of course, if your mailer does not support oauth2 (mine doesn't), you have to use application passwords (I do).
<2.6> 2026-09-13T22:45:24.024656+02:00 Telcontar postfix 7434 - - connect to smtp.gmail.com[2a00:1450:400c:c07::6d]:25: No route to host
<2.6> 2026-09-13T22:45:24.206818+02:00 Telcontar dovecot - - - imap(cer)<7031><TcvZX2Nboq9/AAAB>: Disconnected: Logged out in=2007 out=85107 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0
<2.6> 2026-09-13T22:45:24.311298+02:00 Telcontar postfix 7434 - - Untrusted TLS connection established to smtp.gmail.com[74.125.133.108]:25: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature ECDSA (prime256v1) server-digest SHA256
<2.6> 2026-09-13T22:45:25.754358+02:00 Telcontar postfix 7434 - - EF9AD32220D: to=<dm...@gmail.com>, relay=smtp.gmail.com[74.125.133.108]:25, delay=1.8, delays=0/0.01/0.69/1.1, tls=may, dsn=2.0.0, status=sent (250 2.0.0 OK 1789332325 5b1f17b1804b1-49e60adaeefsm254924445e9.12 - gsmtp)
<2.6> 2026-09-13T22:45:25.754683+02:00 Telcontar postfix 6169 - - EF9AD32220D: removed
<2.6> 2026-09-13T22:45:28.872651+02:00 Telcontar postfix 7421 - - disconnect from localhost[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5
--
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;
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