Keith, I don't use email alerts, but I'd be surprised if this was the case. As far as I know, there's no facility within Xymon to queue up messages like this. Is it possible that your mail system is queuing messages?

On 28 August 2015 at 05:36, Keith Dowell via Xymon <xymon at xymon.com> wrote:

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---------- Forwarded message ---------- From: Keith Dowell <snowolfex at yahoo.com> To: Xymon Mailing List <xymon at xymon.com> Cc: Date: Thu, 27 Aug 2015 19:29:25 +0000 (UTC) Subject: xymon alert frequency Testing a script - and it seems that the email alerts only come out once every ten minutes. Am I seeing this wrong? Is there somewhere to adjust this?