Jason, On Tue, Dec 02, 2003 at 10:19:07AM -0500, Jason McMullen wrote: > > I'm running into an odd issue. We have 2 servers that act as > "front-end" MX hosts running Sendmail. These servers then smarthost all > mail back to a main server. This works well at keeping the main server > unloaded due to dictionary attacks and whatnot. The problem we're > seeing is the MX hosts bogging down when trying to deliver mail to the > main host. > > Does anyone have any tried and true methods for getting Sendmail to be a > little "nicer" about its queuing strategy? Or is the best option qmail > or another MTA?
Make sure that SingleThreadDelivery is turned off on the MX. On the smarthost however make sure it's not dropping connections too early. Look at the the REFUSE_LA and QUEUE_LA (sendmail must have the correct LA_TYPE compiled in). Also look at the CONNECTION_RATE_THROTTLE and MAX_DAEMON_CHILDREN parameters. It may also help to pay attention to which host is resolving what. Hope this helps. -- Henk Roose - [EMAIL PROTECTED] CWI - Centrum voor Wiskunde en Informatica Centre for Mathematics and Computer Science Amsterdam (NL) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
