This colossal brain fart in camel-network-service.c is my own doing:

	switch (method) {
		case CAMEL_NETWORK_SECURITY_METHOD_NONE:
			stream = camel_tcp_stream_raw_new ();
			break;

		case CAMEL_NETWORK_SECURITY_METHOD_STARTTLS_ON_STANDARD_PORT:
			stream = camel_tcp_stream_ssl_new_raw (
				session, host,
				CAMEL_TCP_STREAM_SSL_ENABLE_TLS);
			break;

		case CAMEL_NETWORK_SECURITY_METHOD_SSL_ON_ALTERNATE_PORT:
			stream = camel_tcp_stream_ssl_new (
				session, host,
				CAMEL_TCP_STREAM_SSL_ENABLE_SSL2 |
				CAMEL_TCP_STREAM_SSL_ENABLE_SSL3);
			break;

		default:
			g_return_val_if_reached (NULL);
	}

The middle two cases in the switch statement should be passing the same set of flags, and should include at least CAMEL_TCP_STREAM_SSL_ENABLE_TLS.

The recent POODLE security vulerability effectively kills SSLv3, and so a lot of services are switching it off.  This leaves some Evolution users using "IMAPS" or "POPS" services (the SSL_ON_ALTERNATE_PORT case) with a non-working mailer.

This is already fixed in version 3.12 because Camel started using GTlsConnection, and the SSL/TLS negotiation is handled by glib-networking.

But still worth a backport to Fedora 20 and possibly RHEL 7.0.