experiancing smtp connection reset during Helo to multiple Domains
We are having an issue that just recently started in which the SMTP connection is being dropped or reset folowing Helo. This is only occuring with a couple of domains that I know of. I have verified we are not on any blacklists and I am trying to contact the admins for the domains to find out if they know why we are being reset. I am looking for any information on what would cause a reset after Helo. I should note that we are using a Barracuda appliance as our smtp gateway, but it has been working without issue for several months.
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