[monit-dev] Patch to ensure unique message-ids for notification mails

[Steve Purcell]

I noticed that distinct monit notification mails were getting detected  
as duplicates; this can happen if a few services are restarted in the  
same polling period, for example, and is due to monit using only the  
UNIX time to build Message-Id headers.

Here's a suggested patch to make those headers somewhat more unique:

diff -r1.62 sendmail.c
190c190
<     do_send(&S, "Message-id: <address@hidden>\r\n", time(NULL), S.localhost);
---
>     do_send(&S, "Message-id: <address@hidden>\r\n", time(NULL),  
random(), S.localhost);


Best wishes,

-Steve