Fix $mime_part_count for non-mime message on multi-message connection. Bug 2537

[exim.git] / test / stdout / 0396

220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000\r
250 OK\r
550 Administrative prohibition\r
221 the.local.host.name closing connection\r