RJ-45接口信号定义
RJ-45接口信号定义,以及网线连接头信号安排以太网 10/100Base-T 接口:Pin Name Description 1 TX+ Tranceive Data+ (发信号+) 2 TX- Tranceive Data- (发信号-) 3 RX+ Receive Data+ (收信号+) 4
RJ-45接口信号定义,以及网线连接头信号安排以太网 10/100Base-T 接口:Pin Name Description 1 TX+ Tranceive Data+ (发信号+) 2 TX- Tranceive Data- (发信号-) 3 RX+ Receive Data+ (收信号+) 4
详细的错误信息如下: 发送邮件出错:发件人webmaster@58vip.com 收件人:webmaster@58vip.com信息:The message was undeliverable. All servers failed to receive the message ClientLogg
错误源: jmail.Message错误描述: The message was undeliverable. All servers failed to receive the message导致问题的可能的原因: 1、用户名和密码在代码里要写上 msg..MailServerUserName="用