I’m trying to install Discourse Docker on an AWS server. After the build process completed, I must register an account for admin. [image] Then, I click to the Register button but it doesn’t send any email for me. I used the ./discourse-doctor tool for checking some problem, but I get this: ==================== MAIL TEST ==================== For a robust test, get an address from mail-tester .com Or just send a test message to yourself. Email address for mail test? ('n' to skip) [info@deephub.vn]: Sending mail to info@deephub.vn. . . Testing sending to info@deephub.vn using smtp .yandex .ru:465. ================== ERROR ======================= UNEXPECTED ERROR Net::ReadTimeout ================ SOLUTION ============== This is not a common error. No recommended solution exists! Please report the exact error message above to meta .discourse .org (And a solution, if you find one!) ========================================== Replacing: SMTP_PASSWORD Replacing: LETSENCRYPT_ACCOUNT_EMAIL Replacing: DEVELOPER_EMAILS Replacing: DISCOURSE_DB_PASSWORD Replacing: Sending mail to ==================== DONE! ==================== I configured for SPF and DKIM records in my DNS. Telnet is OK telnet smtp.yandex.ru 465 Any ideas on how I can fix this?

Thanks, @pfaffman. I tried telnetting from inside the container. And it’s OK.

Can not activation mail to smtp.yandex.ru mail server

pfaffman (Jay Pfaffman) July 8, 2020, 11:54am 2

You can try connecting from inside the container. It’s possible that you have some docker networking issue.

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