群发邮件出现错误:PIPELINING STARTTLS
现象
在双翼邮件群发软件发邮件时,出现错误:
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微软邮箱: 250: SG2PR04CA0195.outlook.office365.com Hello [106.113.134.221] SIZE 157286400 PIPELINING DSN ENHANCEDSTATUSCODES STARTTLS 8BITMIME BINARYMIME CHUNKING SMTPUTF8
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谷歌邮箱:250: smtp.gmail.com at your service, [120.85.102.23] SIZE 35882577 8BITMIME STARTTLS ENHANCEDSTATUSCODES PIPELINING CHUNKING SMTPUTF8
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Gmx邮箱:250: gmx.net Hello LAPTOP-583CD8GI [223.66.43.7] 8BITMIME SIZE 69920427 STARTTLS
解决方法
需要将发送邮箱账户的加密方式修改为:Auto TLS