TID: FMail-lnx64 2.1.0.18-B20170815   
   RFC-X-No-Archive: Yes   
   TZUTC: 0200   
   CHRS: UTF-8 2   
   PID: GED+LNX 1.1.5-b20161221   
   MSGID: 2:280/464 6076abca   
   REPLY: 1:153/7001 sTW6u3OA   
   Hi Maurice,   
      
   On 2021-04-13 21:15:41, you wrote to August Abolins:   
      
    AA>> Is that a way to reduce the probability of collisions within a   
    AA>> certain span of allotted time?   
      
    MK> Good question.  I've heard of a few different methods for doing this none   
    MK> of which I am currently deploying.  Mind you I take care of MSGIDs in the   
    MK> creation of the MSG so the possiblity of collisions is near zero.  There   
   is   
    MK> a way but if that happens then it is a signal that something is seriously   
    MK> wrong on my system.  It has yet to happen.   
      
    MK> Just for fun here is the output of 10 potential MSGID serailno's, the   
   first   
    MK> column being unixtime 32-bit hex based, the second being the random 8   
    MK> character [:alnum:] regex dealies;   
      
    MK> 60760e0b kUBdI5RO   
    MK> 60760e0b G5T1LBae   
    MK> 60760e0b mFSS1Gxc   
    MK> 60760e0b Daxpq9EE   
    MK> 60760e0b XVCgstYj   
    MK> 60760e0b uWuB7Jqj   
    MK> 60760e0b J0qZbQIo   
    MK> 60760e0b kGrnLcEZ   
    MK> 60760e0b NQGnXOVM   
    MK> 60760e0b kK7htVJO   
      
    MK> Note that only one method produced zero collisions while the other   
   produced   
    MK> nothing but collisions.  Based on this very simple test the random 8   
    MK> character [:alnum:] regex thingies are obviously superior.   
      
   So your algorithm based on unixtime has a bug! It should take into account it   
   can be called multiple times within the same second. If you do that correctly,   
   it's superior to the random one...   
      
   Bye, Wilfred.   
      
   --- FMail-lnx64 2.1.0.18-B20170815   
    * Origin: FMail development HQ (2:280/464)   
   SEEN-BY: 1/123 18/200 90/1 105/81 120/340 123/131 124/5016 129/305   
   SEEN-BY: 154/10 203/0 221/0 226/30 227/114 229/101 424 426 452 664   
   SEEN-BY: 229/700 1016 1017 240/1120 2100 5138 5411 5824 5832 5853   
   SEEN-BY: 249/206 317 400 280/464 5003 282/1038 288/100 292/8125 301/1   
   SEEN-BY: 310/31 317/3 320/219 322/757 342/200 396/45 423/120 460/58   
   SEEN-BY: 633/280 770/1 2454/119   
   PATH: 280/464 240/5832 229/426