diff --git a/src/lib-sieve/plugins/enotify/ntfy-mailto.c b/src/lib-sieve/plugins/enotify/ntfy-mailto.c
index 663751dd86ed2dff975440baf8721fe7e87d70e9..576ddf1083819aa352c47b2af08c34ed9eba8f9a 100644
--- a/src/lib-sieve/plugins/enotify/ntfy-mailto.c
+++ b/src/lib-sieve/plugins/enotify/ntfy-mailto.c
@@ -841,14 +841,14 @@ static bool ntfy_mailto_send
 	recipients = array_get(&mtctx->recipients, &count);
 	if ( count == 0  ) {
 		sieve_enotify_warning(nlog, 
-			"notify mailto uri specifies no recipients; action has no effect.");
+			"notify mailto uri specifies no recipients; action has no effect");
 		return TRUE;
 	}
 
 	/* Just to be sure */
 	if ( senv->smtp_open == NULL || senv->smtp_close == NULL ) {
 		sieve_enotify_warning(nlog, 
-			"notify mailto method has no means to send mail.");
+			"notify mailto method has no means to send mail");
 		return TRUE;
 	}
 	
@@ -1012,3 +1012,4 @@ static bool ntfy_mailto_action_execute
 
 
 
+
diff --git a/src/lib-sieve/plugins/imapflags/tag-flags.c b/src/lib-sieve/plugins/imapflags/tag-flags.c
index aa80745f8415e539f4e9f61d54efc362d431c26f..22218fe441520ab1dcd653f8bc5972c13c19caad 100644
--- a/src/lib-sieve/plugins/imapflags/tag-flags.c
+++ b/src/lib-sieve/plugins/imapflags/tag-flags.c
@@ -416,19 +416,20 @@ static bool seff_flags_pre_execute
 			const char *const *keyword = array_idx(&ctx->keywords, i);
 			const char *kw_error;
 
-			if ( trans->box != NULL && 
-				mailbox_keyword_is_valid(trans->box, *keyword, &kw_error) )
-				array_append(&trans->keywords, keyword, 1);
-			else {
-				char *error = "";
-				if ( kw_error != NULL && *kw_error != '\0' ) {
-					error = t_strdup_noconst(kw_error);
-					error[0] = i_tolower(error[0]);
-				}
+			if ( trans->box != NULL ) {
+				if ( mailbox_keyword_is_valid(trans->box, *keyword, &kw_error) )
+					array_append(&trans->keywords, keyword, 1);
+				else {
+					char *error = "";
+					if ( kw_error != NULL && *kw_error != '\0' ) {
+						error = t_strdup_noconst(kw_error);
+						error[0] = i_tolower(error[0]);
+					}
 				
-				sieve_result_warning(aenv, 
-					"specified IMAP keyword '%s' is invalid (ignored): %s", 
-					str_sanitize(*keyword, 64), error);
+					sieve_result_warning(aenv, 
+						"specified IMAP keyword '%s' is invalid (ignored): %s", 
+						str_sanitize(*keyword, 64), error);
+				}
 			}
 		}
 	}
diff --git a/src/lib-sieve/plugins/vacation/cmd-vacation.c b/src/lib-sieve/plugins/vacation/cmd-vacation.c
index 9715e1eb42491547e436f1c5b4afef756c337164..6e6ccd0545e23b2cfd2eb7ff6eba1949a8d1cb3c 100644
--- a/src/lib-sieve/plugins/vacation/cmd-vacation.c
+++ b/src/lib-sieve/plugins/vacation/cmd-vacation.c
@@ -836,7 +836,7 @@ static bool act_vacation_send
 	/* Check smpt functions just to be sure */
 
 	if ( senv->smtp_open == NULL || senv->smtp_close == NULL ) {
-		sieve_result_warning(aenv, "vacation action has no means to send mail.");
+		sieve_result_warning(aenv, "vacation action has no means to send mail");
 		return TRUE;
 	}