Hello, I’m trying to implement SMTP for groups but I keep getting the following error message. [image] Yet I’m using the same smtp server the instance uses and I get the same error message even if I use the same credentials specified in my app.yml file… I don’t understand why it’s behaving differ…

I suspect Discourse is attempting to connect to the SMTP server with TLS instead of STARTTLS. Can you screenshot the relevant settings? Please do redact specific hostnames and usernames but leave port information and other settings.

Configuration is rather classic : usual 587 port and starttls is true (default value) general configuration : [server] for group smtp : [group_smtp] I’ve been doing some tcpdump to see whats going on and I’m noticing 3 different behaviors. For the first two cases, it’s exactly as described i…

587 will support STARTTLS but not TLS (at connect time). We should amend the options here to allow STARTTLS. If you uncheck “Use SSL for SMTP” does it work?

Unfortunately, no it doesn’t work. unchecking “Use SSL for SMTP” gives me the following error message : [image] Which is strange because I know my credentials are correct. Looking with tcpdump, it behaves like I’ve explain for the “Discourse-doctor and rake” case. The exchanges between Discours…

I’m now having the same issue as I try to configure Discourse SMTP to work with an ImprovMX email address. [CleanShot 2022-02-01 at 06.30.49@2x] Any thoughts @supermathie ?

그룹용 SMTP: ssl 잘못된 버전 번호 오류

제품 지원 자체 호스팅

galligan (Matt Galligan) 2월 1, 2022, 11:32오전 6

지금 ImprovMX 이메일 주소와 함께 Discourse SMTP를 설정하려고 하는데 같은 문제가 발생하고 있습니다.

@supermathie, 혹시 의견이 있으신가요?

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그룹용 SMTP: ssl 잘못된 버전 번호 오류

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