Email testing: Difference between revisions

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== For role: web developers ==
== For role: web developers ==
* {{Gd}} [https://www.caniemail.com/ Can I email… Support tables for HTML and CSS in emails] {{access | date=2026-04-24}} e.g. [https://www.caniemail.com/features/image-webp/ Can I email… webP image format]
* [[Troubleshooting of PHP errors#錯誤訊息: SMTP Error: Could not connect to SMTP host.]]
* [[Troubleshooting of PHP errors#錯誤訊息: SMTP Error: Could not connect to SMTP host.]]



Revision as of 10:25, 11 August 2026

Testing

For role: users

Using the following e-mail service with name alias or alternative name


For role: web developers

For role: system administrator

If you have the telnet permission,

是否可以連線到 SMTP 主機nslookup smtp.gmail.comtelnet smtp.gmail.com port (例子中以 gmail 作為 smtp 伺服器) telnet smtp.gmail.com 465 預期結果:

Trying 74.125.129.109...
Connected to smtp.gmail.com.
Escape character is '^]'.
^] //註:(Windows) 輸入 ctrl + ] 兩個按鍵,(Mac) 輸入 control + ] 兩個按鍵
telnet> quit
Connection closed.

非預期結果:請調整防火牆設定

Trying x.x.x.x...
telnet: connect to address x.x.x.x: Connection refused

參考資料