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Unable to send bulk emails through Virtual Server SMTP Relay

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Last Modified: 2013-11-30
Hi All,

I have a virtual server and have setup SMTP Relay through IIS 6.0, I am able to send emails to single recipients and have tried up to five and it works, the main purpose of purchasing this Virtual Server was so that one of our clients could send bulk email, she will maybe send 2-3 emails per week to a list of 1100 people (legit email - not advertising etc) but upon doing so she gets an error saying 'connection to the server was interrupted'.
I have seen this error where the smtp host has got a network wide policy restricting the number of recipients but the hosts of the VPS (WebFusion) assure me that there are no limitations at all.

On the SMTP Relay properties in IIS I have lifted all restrictions etc but we are still experiencing this problem.

Please could anyone help?

Thanks
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