问题
I am getting interesting rejections from my clients mail server when sending a mail with indy-10's tidMessage component saying:
550 Rejected: Message does not contain a Message-ID
I get this even when using indy's own demo app
http://www.indyproject.org/DemoDownloads/Indy_10_MailClient.zip
what do I do to fix this. thanks!
回答1:
TIdMessage in Indy 10 intentionally omits the 'Message-Id' header when encoding an email to a socket or TStream. You will have to use the TIdMessage.ExtraHeaders property, eg:
IdMessage1.MsgId := ...';
IdMessage.ExtraHeaders.Values['Message-Id'] := IdMessage1.MsgId;
EDIT:
As a followup for this - TIdMessage
has now been updated with logic changes in how it handles the "Message-ID" and "In-Reply-To" headers:
http://indyproject.org/sockets/blogs/changelog/20160912.aspx
The TIdMessage.MsgId
property now generates a "Message-ID" header regardless of whether the email is being saved, streamed, or transmitted. So you do not need to use the ExtraHeaders
property anymore.
回答2:
It works with Indy9, maybe things haven't cahnged too much in 10:
procedure AddMsgID(AMsg: TIdMessage);
var
id: AnsiString;
begin
id := GenerateUniqueMsgID;
AMsg.MsgId := id;
AMsg.AddHeader('Message-ID=' + id);
// AMsg.ExtraHeaders.Values['Message-ID'] := id;
end; // AddMsgID
来源:https://stackoverflow.com/questions/4496821/sending-mail-but-no-message-id