base.m4: Add missing `SMTP_DELIVERY' to the plain `smtp' transport.

diff --git a/base.m4 b/base.m4
index 974cf5f..692a74b 100644 (file)
--- a/base.m4
+++ b/base.m4
@@ -434,6 +434,7 @@ SECTION(transports)m4_dnl
 ## it into the transport name.  This is very unpleasant, of course.
 smtp:
        driver = smtp
+       SMTP_DELIVERY
        APPLY_HEADER_CHANGES
        tls_require_ciphers = CONF_acceptable_ciphers
        tls_dh_min_bits = 508