Python 發郵件報錯 server_hostname cannot be an empty string or start with a leading dot.

Python 發郵件報錯 server_hostname cannot be an empty string or start with a leading dot.

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1、使用環境，報錯內容

python 3.8

ValueError: server_hostname cannot be an empty string or start with a leading dot.

2、代碼

server = smtplib.SMTP_SSL()
server.connect(mail_config.smtp_server, mail_config.smtp_port)

3、需要改爲

server = smtplib.SMTP_SSL(mail_config.smtp_server)
server.connect(mail_config.smtp_server, mail_config.smtp_port)

4、因爲

這裏給了個空值

連接的時候又給了個默認值，所以需要兩邊都設置下