Message in Chinese (Simplified) (中文(简体))![](/img/flags/zh-Hans.png)
无法在重新传输之间更改消息上的 MessageId 标头。首次发送时 MessageId 标头的原始值为 <var>X</var>,但其现在的值为 <var>Y</var>。
Unlocalized message![](/img/flags/en.png)
The MessageId header on a message cannot change between retransmissions. The original value of the MessageId header when first sent was <var>X</var>, but it now has a value of <var>Y</var>.
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