Are the devices overworked with outgoing email? If not, I would not worry about that.
From: Sean Martin [mailto:seanmarti...@gmail.com] Sent: Thursday, January 20, 2011 1:05 PM To: MS-Exchange Admin Issues Subject: Re: SMTP Load Balancing - Barracuda That sounds likely, I just don't see anywhere within the GUI to control that behaivor. - Sean On Thu, Jan 20, 2011 at 8:55 AM, Kennedy, Jim <kennedy...@elyriaschools.org<mailto:kennedy...@elyriaschools.org>> wrote: Cuda's caching the dns lookup? From: Sean Martin [mailto:seanmarti...@gmail.com<mailto:seanmarti...@gmail.com>] Sent: Thursday, January 20, 2011 12:43 PM To: MS-Exchange Admin Issues Subject: SMTP Load Balancing - Barracuda Good morning all, I've got two Barracuda SPAM/Virus Firewalls that I'm trying to setup for load balancing outgoing mail. The Barracuda's forward mail to a smarthost, and since they're clustered, I can't specify separate smart hosts per device. Barracuda documentation indicates this is accomplished using MX records. I created an MX record named testmx.domain.com<http://testmx.domain.com/> and two A records both named test.domain.com<http://test.domain.com/>, one for each of the downstream smart hosts. However, both of the barracuda's appear to favor only one of the smart hosts when delivering outgoing mail. Repeated NSLookups against the MX record seem to alternate between the A records as expected. Any ideas on why this wouldn't work? - Sean --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe exchangelist --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe exchangelist --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe exchangelist --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe exchangelist