谢谢 @loic，我刚更新了，对我来说它仍然不发送电子邮件。
我使用 SMTP 端口 25，不使用 TLS 和 SSL，日志中没有错误，明天我会发布详细信息，希望如此……
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我确认，2.9.0.beta4 002d62b847 并且一直存在：
SSL_connect 返回=1 errno=0 peeraddr=xxx.xxx.xxx.xxx:25 state=error: certificate verify failed (Hostname mismatch)
该补丁无法禁用检查，它只能完全禁用 starttls。您的设置是什么样的？
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DISCOURSE_SMTP_ADDRESS: smtp.mydomain.info
DISCOURSE_SMTP_PORT: 25
DISCOURSE_SMTP_USER_NAME: info@mydomain.info
DISCOURSE_SMTP_PASSWORD: “mypassword”
DISCOURSE_SMTP_OPENSSL_VERIFY_MODE: none
DISCOURSE_SMTP_ENABLE_START_TLS: false # (optional, default true)
DISCOURSE_SMTP_DOMAIN: mydomain.info # (required by some providers)
谢谢
嗯，这确实应该有效（尽管我没有亲自测试过该补丁）
我还将第二个论坛更新到了 2.9.0.beta5 版本（47034d9ca0），并且：
======================================== ERROR ========================================
UNEXPECTED ERROR
SSL_connect returned=1 errno=0 peeraddr=xxx.xxx.xxx.xxx:25 state=error: certificate verify failed (Hostname mismatch)
====================================== SOLUTION =======================================
This is not a common error. No recommended solution exists!
太棒了！
好的，由于没有 SSL/TLS 就无法发送电子邮件了，有人能帮我重新配置一下吗？
从 这里 开始：
- 尝试通过
openssl连接到您的 SMTP 服务器：
（容器内未安装 telnet、nc 等）
尝试一些不同的设置，直到您成功连接。
openssl s_client -connect your.smtp.server:465
这是返回结果：
openssl s_client -connect smtps.aruba.it:465
CONNECTED(00000003)
depth=2 C = IT, L = Milan, O = Actalis S.p.A./03358520967, CN = Actalis Authentication Root CA
verify return:1
depth=1 C = IT, ST = Bergamo, L = Ponte San Pietro, O = Actalis S.p.A., CN = Actalis Organization Validated Server CA G3
verify return:1
depth=0 C = IT, ST = Bergamo, L = Ponte San Pietro, O = Aruba S.p.A., CN = *.aruba.it
verify return:1
---
Certificate chain
0 s:C = IT, ST = Bergamo, L = Ponte San Pietro, O = Aruba S.p.A., CN = *.aruba.it
i:C = IT, ST = Bergamo, L = Ponte San Pietro, O = Actalis S.p.A., CN = Actalis Organization Validated Server CA G3
1 s:C = IT, ST = Bergamo, L = Ponte San Pietro, O = Actalis S.p.A., CN = Actalis Organization Validated Server CA G3
i:C = IT, L = Milan, O = Actalis S.p.A./03358520967, CN = Actalis Authentication Root CA
---
Server certificate
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
subject=C = IT, ST = Bergamo, L = Ponte San Pietro, O = Aruba S.p.A., CN = *.aruba.it
issuer=C = IT, ST = Bergamo, L = Ponte San Pietro, O = Actalis S.p.A., CN = Actalis Organization Validated Server CA G3
---
No client certificate CA names sent
Peer signing digest: SHA512
Peer signature type: RSA
Server Temp Key: ECDH, P-256, 256 bits
---
SSL handshake has read 4572 bytes and written 432 bytes
Verification: OK
---
New, TLSv1.2, Cipher is ECDHE-RSA-AES256-GCM-SHA384
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
Protocol : TLSv1.2
Cipher : ECDHE-RSA-AES256-GCM-SHA384
Session-ID: E79BF76633C1FF1930AB44B11DD45E5CE0CE4D3ECAA3B035C4239E3D576BADC0
Session-ID-ctx:
Master-Key: B2DFD5C791C36245D8B51F876F720F627F60F5AA1C085D4F16643D206406737059C6DD4CB51A508FFD872FE718822394
PSK identity: None
PSK identity hint: None
SRP username: None
TLS session ticket lifetime hint: 300 (seconds)
TLS session ticket:
0000 - d5 97 a0 c2 6a b1 51 3e-7c 9d fa b3 d2 99 0f 13 ....j.Q\u003e|.......\
0010 - fc 39 61 86 c1 88 91 51-11 7b 55 42 e5 7c 1f 27 .9a....Q.{UB.|.'
0020 - 39 3b 22 67 45 6c 22 53-7a 1a 4f f8 76 e9 ef 89 9;"gEl"Sz.O.v...
0030 - 3c 11 df 3b 98 f3 0c 1e-44 f0 f9 af 27 71 f5 6f \u003c..;....D...'q.o
0040 - ab 3e 78 b4 9d b3 e5 49-fb 20 80 2e a2 5b f8 4a .\u003ex....I. ...[.J
0050 - 4f 4b fe 60 5a c2 cf ea-d0 81 6b bc 42 a3 ac 2a OK.`Z.....k.B..*
0060 - 4a 14 e5 61 a8 5e 94 c6-5c 27 09 81 e5 4d 93 b7 J..a.^..\'. ..M..
0070 - 13 b2 e0 6d f2 db 08 c2-16 f5 b9 e3 52 6b 70 d0 ...m........Rkp.
0080 - 25 44 b4 37 07 c6 83 c3-0b 41 c4 d6 99 45 03 f2 %D.7.....A...E..
0090 - 5a 79 27 ea e2 52 96 62-bc bc 34 53 13 32 02 2b Zy'..R.b..4S.2.+
00a0 - 5a 46 1f 51 f4 82 12 36-2c 6d 4f 5b e6 07 94 7c ZF.Q...6,mO[...|
Start Time: 1655216339
Timeout : 7200 (sec)
Verify return code: 0 (ok)
Extended master secret: no
---
220 smtpdh01.ad.aruba.it Aruba Outgoing Smtp ESMTP server ready
HELO mydomain.info
250 smtpdh01.ad.aruba.it hello [5.xxx.xxx.xxx], pleased to meet you
我的 app.yml
DISCOURSE_SMTP_ADDRESS: smtps.aruba.it
DISCOURSE_SMTP_PORT: 465
DISCOURSE_SMTP_USER_NAME: myemail@domain.info
DISCOURSE_SMTP_PASSWORD: "password"
DISCOURSE_SMTP_ENABLE_START_TLS: false # (optional, default true)
DISCOURSE_SMTP_DOMAIN: domain.info # (required by some providers)
发送仍然无效…
./discourse-doctor
==================== MAIL TEST ====================
For a robust test, get an address from http://www.mail-tester.com/
Or just send a test message to yourself.
Email address for mail test? ('n' to skip) [myemail@domain.info]:
Sending mail to myemail@domain.info. . .
Testing sending to smtps.aruba.it:465, username:myemail@domain.info with plain auth.
======================================== ERROR ========================================
UNEXPECTED ERROR
Net::ReadTimeout
====================================== SOLUTION =======================================
This is not a common error. No recommended solution exists!
DISCOURSE_SMTP_ENABLE_START_TLS: 同样，没有任何改变。
尝试了一个多月后，我该如何解决？
难道只有我不能发送电子邮件吗？
谢谢
您可以将邮件服务器配置为使用端口 587（TLS 或无，看哪种可用），然后尝试此操作并重建 discourse
DISCOURSE_SMTP_ADDRESS: smtps.aruba.it
DISCOURSE_SMTP_PORT: 587
DISCOURSE_SMTP_USER_NAME: myemail@domain.info
DISCOURSE_SMTP_PASSWORD: “password”
1 个赞
新 Discourse 安装的电子邮件故障排除 指南中有这样一段内容，或许会有帮助？
它不起作用，这是我一年来一直在使用的初始配置，但它已经一个月不起作用了。
======================================== ERROR ========================================
UNEXPECTED ERROR
SSL_connect returned=1 errno=0 peeraddr=xxx.xxx.xxx.xxx:587 state=error: certificate verify failed (Hostname mismatch)
====================================== SOLUTION =======================================
This is not a common error. No recommended solution exists!
如果我尝试使用 openssl 连接：
openssl s_client -connect smtps.aruba.it:587
CONNECTED(00000003)
548286781936:error:1408F10B:SSL routines:ssl3_get_record:wrong version number:../ssl/record/ssl3_record.c:331:
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 5 bytes and written 306 bytes
Verification: OK
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 0 (ok)
---
root@vps:/var/www/discourse#
不幸的是没有，我尝试了一切……
在您的 app.yml 中添加这一行：
DISCOURSE_SMTP_OPENSSL_VERIFY_MODE: none
不要添加 START_TLS 行
4 个赞
我已将此内容移至专门的 Support 主题。
（我的主题标题技能有待提高，所以如果您能为问题提供更贴切的描述，请随时提出 
）
1 个赞
您需要专门配置您的 SMTP 服务器以使用端口 587（并非所有服务器都启用了该端口）并启用 TLS 或 STARTTLS。
2 个赞
现在它可以使用 discourse-doctor 了，Web 测试会超时，但电子邮件已发送。
感谢大家的帮助！
我的 VPS 使用 aarch64 CPU，这会是问题吗？
2 个赞
标记 @loic 我的建议似乎在 BETA 5 中奏效了；这表明 TLS 补丁可能没有按预期工作。
添加
DISCOURSE_SMTP_ENABLE_START_TLS: false
似乎会导致 SSL 连接失败
2 个赞
谢谢！
是的，这确实很奇怪 
我会再看看，试着弄明白为什么它不能按预期工作，但我猜当 mail gem 修好后一切都会恢复正常 
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