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Jenkins email could not connect failure

I tried with various SMTP servers, but I can't get Jenkins to send an email. I get an error could not connect- nothing, only this error.

See screenshot below.

Any ideas why? I am using the Jenkins docker container, the firewall is turned off.

I do not have an email server running inside a Jenkins container. I believe I don’t need it if Gmail sends me an email.

Image of the stack trace from the SMTP handler in the Jenkins UI> </a> </p></div></body> </html>

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2 answers

Gmail configuration looks right. Usually these problems come down to the firewall, but if you are sure that this is not a problem, these may be your Gmail account settings.

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telnet smtp.gmail.com 465

openssl s_client -connect smtp.gmail.com:587 -starttls smtp

echo "Hello world" | swaks -4 --server smtp.gmail.com:587 --from user@gmail.com --to user@example.net -tls --tls-protocol sslv3 --auth PLAIN --auth-user user@gmail.com --auth-password 7654321 --h-Subject "Test message" --body -
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Source: https://habr.com/ru/post/1670351/

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