最近我在为 Discourse 配置阿里云邮件推送服务，但是一直出现了阻碍，邮件推送服务无法正常使用，你们能找出问题吗？ ==================== DOCKER INFO ==================== DOCKER VERSION: Docker version 29.2.1, build a5c7197 DOCKER PROCESSES (docker ps -a) CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 412d2aebeefc local_discourse/app "/sbin/boot" 4 seconds ago Up 3 seconds 0.0.0.0:80->80/tcp, [::]:80->80/tcp, 0.0.0.0:443->443/tcp, [::]:443->443/tcp app 412d2aebeefc local_discourse/app "/sbin/boot" 4 seconds ago Up 3 seconds 0.0.0.0:80->80/tcp, [::]:80->80/tcp, 0.0.0.0:443->443/tcp, [::]:443->443/tcp app Discourse container app is running ==================== PLUGINS ==================== - git clone https://github.com/discourse/docker_manager.git - git clone https://github.com/sydomo/discourse-cloudflare-turnstile.git WARNING: You have what appear to be non-official plugins. If you are having trouble, you should disable them and try rebuilding again. See https://github.com/discourse/discourse/blob/main/lib/plugin/metadata.rb for the official list. ======================================== Discourse version at communitytest.akarinliu.com: NOT FOUND Discourse version at localhost: NOT FOUND ==================== MEMORY INFORMATION ==================== RAM (MB): 2069 total used free shared buff/cache available Mem: 1973 479 1191 18 492 1493 Swap: 2047 68 1979 ==================== DISK SPACE CHECK ==================== ---------- OS Disk Space ---------- Filesystem Size Used Avail Use% Mounted on /dev/sda1 30G 8.8G 20G 32% / ==================== DISK INFORMATION ==================== Disk /dev/sda: 30 GiB, 32212254720 bytes, 62914560 sectors Disk model: QEMU HARDDISK Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x86a4d272 Device Boot Start End Sectors Size Id Type /dev/sda1 * 2048 62914526 62912479 30G 83 Linux ==================== END DISK INFORMATION ==================== ==================== 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) [akarinliu@outlook.com]: Sending mail to akarinliu@outlook.com. . . Testing sending to akarinliu@outlook.com using smtpdm.aliyun.com:465, username:hi@notify.akarinliu.com with plain auth. ==================================== ERROR ===================================== UNKNOWN ERROR! Net::ReadTimeout: Net::ReadTimeout with # =================================== SOLUTION =================================== This is not a common error. No recommended solution exists! Please report the exact error message above to https://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! ==================== Would you like to serve a publicly available version of this file? (Y/n) n 'Publicly available log not generated. You can examine the output of this script with LESS=-Ri less /tmp/discourse-debug.txt BUT FIRST, make sure that you know the first three commands below!!! Commands to know when viewing the file with the above command (called 'less'): q -- quit /error -- search for the word 'error' n -- search for the next occurrence g -- go to the beginning of the file f -- go forward a page b -- go back a page G -- go to the end of the file

[תמונה] 阿卡林刘（刘贤宏）: Testing sending to akarinliu@outlook.com using smtpdm.aliyun.com:465, username:hi@notify.akarinliu.com with plain auth. ==================================== ERROR ==================================== UNKNOWN ERROR! Net::ReadTimeout: Net::ReadTimeout with # Are you able to telnet into the smtp server? telnet smtpadm.aliyun.com 465

可以，但是就是无法使用 465 端口发送邮件

This could be due to something specific to your ESP, there were recent reports from another ESP causing issues, does aliyun support any other ports for sending?

支持 25端口和 80端口发送邮件，465 端口不能正常使用

They don’t support 587 or 2525?

是的，我向官方提交了一个意见，内容是要求服务商为邮件推送服务提供 587 端口。 [图片]

我已将阿里云邮件推送服务换成了 Brevo，因为我的 Outlook 无法收到邮件，IP 被拒收了……

Aliyun email push not working

תמיכה

AkarinLiu (阿卡林刘（刘贤宏）) 20 בפברואר,‏ 2026,‏ 3:50am 3

Yes, but port 465 cannot be used to send emails.

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Aliyun email push not working

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