Hi, okay that makes sense. I guess my next question is what is going on when we get a bulk mail campaign or spam attack and I see the /var/spool/postfix/incoming Directory only allow 20,000 files in there ?
Thanks. -ANGELO FAZZINA ITS Service Manager: Spam and Virus Prevention Mass Mailing G Suite/Gmail ang...@uconn.edu University of Connecticut, ITS, SSG, Server Systems 860-486-9075 -----Original Message----- From: owner-postfix-us...@postfix.org <owner-postfix-us...@postfix.org> On Behalf Of Wietse Venema Sent: Tuesday, May 1, 2018 10:27 AM To: Postfix users <postfix-users@postfix.org> Subject: Re: postfix maximum load capacities by official document Fazzina, Angelo: > Hi again, I guess I don't have a clear understanding of this in the man page ? > > Ran command > [root@mta1 ~]# man 5 postconf > > default_recipient_limit (default: 20000) > > The default per-transport upper limit on the number of IN-MEMORY > recipients. The Postfix mail queue is not an IN-MEMORY queue. That would limit the amount of email that Postfix can handle, and it would violate the requirement that mail is not lost after a system crash. Wietse