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如果我使用PHPmailer发送单线消息,它将消除任何错误。PHPmailer数据不被服务器接受:421
但如果我发送大消息(10行),我得到以下错误::。
SMTP -> FROM SERVER:250 2.5.0 Address Ok.
SMTP -> FROM SERVER:250 2.1.5 <toaddress>@gmail.com OK.
SMTP -> FROM SERVER:354 Enter mail, end with a single ".".
SMTP -> FROM SERVER:421 4.4.2 Timeout while waiting for command.
SMTP -> ERROR: DATA not accepted from server: 421 4.4.2 Timeout while waiting for command.
SMTP Error: Data not accepted.