Saving a Mail Message to a File

Internet Protocols Module User's Guide
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6.4 Saving a Mail Message to a File

If you attempt to save a mail message to a file using the RWStreamCoupler mechanism, use the pop3StreamFilter global function. You can find its declaration in the pop3.h header file as the filter of the RWStreamCoupler::operator() method. This filter indicates an end-of-data (mail) condition on a POP3 input stream, as shown in the following example.

Example 22: Saving a mail message to a file

RWPop3DataReply reply;
reply = client.retr(1);  // retrieve the first message

RWPortalIStream istr(reply.portal()); // construct an input stream

ofstream ostr("save.me");  // construct an output stream in save.me

RWStreamCoupler couple;
couple(istr, ostr, pop3StreamFilter);

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