We currently use mailstreet.com for our email hosting because they also handle our Blackberry Enterprise Server hosting. This is working fine. We have a few devices that need to send email such as network scanners, power monitors, etc. For these devices, we have been using our internet providers smpt information (smtp.charter.net). We have changed internet providers to an ATT DS3 and since they are not providing email, they are not providing us an SMTP address to use. For some devices, we can use authenicated login to Mailstreet's server but for a few devices, they do not allow authenicated login; they just have a space for the SMTP server. If I try to use smtp.charter.net, it says no relaying allowed, which I understand. I just don't know how to set these devices up to work anymore.
What should we do to make these devices work? Host our own SMTP server? I am at a loss. Any help would be appreciated.