Date: Sat, 02 Dec 2006 08:58:55 -0500 From: "Worth Bishop" <wbishop@twosensemedia.com> To: freebsd-questions@freebsd.org Subject: FreeBSD 6.1 throttling sendmail? Message-ID: <web-2521640@twosensemedia.com>
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After poring over sendmail manuals, docs, readme's and Googling extensively have not found the answer to this question. What configuration settings regulate the outgoing e-mail volume? Have recently upgraded from FreeBSD 4.3 to 6.1 (i.e., did new install of 6.1 on clean disk, installed current versions of applications and moved files - on same server as before, same processors/memory, etc.). Installed Sendmail 8.13 using standard sendmail.cf & FreeBSD.cf in /etc/mail. Have a PostgreSQL database of 20k+ opt-in subscribers to a newsletter. When I invoke the sending routine, sendmail immediately spawns 20 - 30 processes (all I can see via "top"), quickly sends out 150 - 160 e-mails (via /var/spool/mqueue) then no more new processes are spawned and the system returns to a listening state. No error message in /var/log/messages, no clues in /var/log/maillog, nothing in the PostgreSQL logfile to indicate why the e-mails stopped sending. FreeBSD's sysctl shows more than ample system resources (mbufs, files, etc). Netstat -m reveals no denied requests. Is there another FreeBSD mechanism at play? A sendmail configuration setting I can tweak to ensure all e-mails are sent? Any other ideas on a cause of this behavior? Have x-posted to the comp.mail.sendmail group with no replies yet; sure would appreciate any help. Thanks!
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