Index: lib/loadalerts.c
===================================================================
--- lib/loadalerts.c	(revision 6016)
+++ lib/loadalerts.c	(revision 6019)
@@ -1075,9 +1075,19 @@
 			addtobuffer(buf, l);
 		}
 
-		if (printrule->criteria) mindur = printrule->criteria->minduration;
+		/*
+		 * The min/max duration of an alert can be controlled by both the actual rule,
+		 * and by the recipient specification.
+		 * The rule must be fulfilled before the recipient even gets into play, so
+		 * if there is a min/max duration on the rule then this becomes the default
+		 * and recipient-specific settings can only increase the minduration/decrease
+		 * the maxduration.
+		 * On the other hand, if there is no rule-setting then the recipient-specific
+		 * settings determine everything.
+		 */
+		if (printrule->criteria && printrule->criteria->minduration) mindur = printrule->criteria->minduration;
 		if (recip->criteria && recip->criteria->minduration && (recip->criteria->minduration > mindur)) mindur = recip->criteria->minduration;
-		if (printrule->criteria) maxdur = printrule->criteria->maxduration;
+		if (printrule->criteria && printrule->criteria->maxduration) maxdur = printrule->criteria->maxduration;
 		if (recip->criteria && recip->criteria->maxduration && (recip->criteria->maxduration < maxdur)) maxdur = recip->criteria->maxduration;
 		if (printrule->criteria && printrule->criteria->timespec) timespec = printrule->criteria->timespec;
 		if (recip->criteria && recip->criteria->timespec) {