最近使用Indy做的系统接收邮件,以前一直没有问题,突然出现一个访问错误,追踪到源码,发现在IdMessage.pas中有这么一段代码:
第860行处
......
// S.G. 27/1/2003: Only issue X-Priority header if priority <> mpNormal (for stoopid spam filters)
if Priority <> mpNormal then begin
......
而Priority是TIdMessage的一个属性:
FPriority: TIdMessagePriority;
......
property Priority: TIdMessagePriority read FPriority write FPriority default ID_MSG_PRIORITY;
...
其中:
TIdMessagePriority = (mpHighest, mpHigh, mpNormal, mpLow, mpLowest);
ID_MSG_PRIORITY = mpNormal;
可奇怪不知道为什么Priority属性在特定的邮件中会出现错误:
(out of bound)-1
不知道枚举类型有缺省值怎么会出现这种错误.只好用一种笨办法简单修改一下:
...
// S.G. 27/1/2003: Only issue X-Priority header if priority <> mpNormal (for stoopid spam filters)
//by garfield,奇怪,怎么会出现Priority (out of bound) -1错误?
if (Priority <> mpHighest) and (Priority <> mpHigh) and (Priority <> mpNormal) and (Priority <> mpLow) and (Priority <> mpLowest) then
Priority := mpNormal;
if Priority <> mpNormal then begin
....
不知道有没有大侠也遇到过这种情况.
Indy,Bug还是那么多.
