Evolution Header Format - Revision history

Joachim Metz at 05:29, 23 July 2012

2012-07-23T05:29:39Z

Jessek at 15:07, 8 August 2007

2007-08-08T15:07:04Z

Fishor at 17:05, 28 July 2007

2007-07-28T17:05:45Z

Fishor at 17:01, 28 July 2007

2007-07-28T17:01:26Z

Fishor: New page:

 Subject: header test From: Username  To: Username  Content-Type: text/plain Date: Sat, 28 Jul 2007 11:52:35 +0200 Message-Id: <1...

2007-07-28T10:25:10Z

New page: <pre> Subject: header test From: Username <username@sendinghost.com> To: Username <username@receivinghost.com> Content-Type: text/plain Date: Sat, 28 Jul 2007 11:52:35 +0200 Message-Id: <1...

New page

<pre>
Subject: header test
From: Username <username@sendinghost.com>
To: Username <username@receivinghost.com>
Content-Type: text/plain
Date: Sat, 28 Jul 2007 11:52:35 +0200
Message-Id: <1185616355.19231.0.camel@localhost>
Mime-Version: 1.0
X-Mailer: Evolution 2.10.1
Content-Transfer-Encoding: 7bit
</pre>

← Older revision		Revision as of 05:29, 23 July 2012
Line 20:		Line 20:

	The Message id format comes from the function <tt>camel_header_msgid_generate</tt> in <tt>evolution-data-server/camel/camel-mime-utils.c</tt>.		The Message id format comes from the function <tt>camel_header_msgid_generate</tt> in <tt>evolution-data-server/camel/camel-mime-utils.c</tt>.
		+
		+	[[Category:Email Analysis]]

@@ Line 11: / Line 11: @@
 </pre>
-Code responsible for generating Message-ID:
+The Message id consists of five parts:
-<pre>
-camel_header_msgid_generate (void)
-−
-        static pthread_mutex_t count_lock = PTHREAD_MUTEX_INITIALIZER;
-#define COUNT_LOCK() pthread_mutex_lock (&count_lock)
-#define COUNT_UNLOCK() pthread_mutex_unlock (&count_lock)
-        char host[MAXHOSTNAMELEN];
-        char *name;
-        static int count = 0;
-        char *msgid;
-        int retval;
-        struct addrinfo *ai = NULL, hints = { 0 };
-        retval = gethostname (host, sizeof (host));
+# The current time as returned by the <tt>time</tt> function followed by a period. The value is dislayed in decimal and is the number of seconds since midnight on 1 Jan 1970. In the example above, 1185616355 refers to Sat, 28 Jul 2007 09:52:35 GMT.
-        if (retval == 0 && *host) {
+# The process id number in decimal followed by a period
-                hints.ai_flags = AI_CANONNAME;
+# The third value starts at zero but may increase as more messages are sent. It is also followed by a period
-                ai = camel_getaddrinfo(host, NULL, &hints, NULL);
+# The word <tt>camel</tt> followed by an '@'
-                if (ai && ai->ai_canonname)
+# If the canonical hostname can found, it is used. Otherwise the hostname
-                        name = ai->ai_canonname;
-                else
-                        name = host;
-        } else
-                name = "localhost.localdomain";
-        COUNT_LOCK ();
+The Message id format comes from the function <tt>camel_header_msgid_generate</tt> in <tt>evolution-data-server/camel/camel-mime-utils.c</tt>.
-        msgid = g_strdup_printf ("%d.%d.%d.camel@%s", (int) time (NULL), getpid (), count++, name);
-        COUNT_UNLOCK ();
-−
-        if (ai)
-                camel_freeaddrinfo(ai);
-−
-        return msgid;
-−
-</pre>
-−
-== References ==
 evolution-data-server/camel/camel-mime-utils.c

← Older revision		Revision as of 17:05, 28 July 2007
Line 46:		Line 46:
	}		}
	</pre>		</pre>
		+
		+	== References ==
		+	evolution-data-server/camel/camel-mime-utils.c

@@ Line 9: / Line 9: @@
 X-Mailer: Evolution 2.10.1
 Content-Transfer-Encoding: 7bit
 </pre>