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My boss has a sympatico email account but for some odd reason, sympatico only allows your to send email (smtp) through outlook if your using your sympatico internet service. The problem is that my boss is now in Florida and far away from any sympatico service.<br />
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My colleague suggested we use a different SMTP server that we use for the company. The SMTP server is not an open relay but are we still risking being put on a RBL?
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My boss has a sympatico email account but for some odd reason, sympatico only allows your to send email (smtp) through outlook if your using your sympatico internet service. The problem is that my boss is now in Florida and far away from any sympatico service.

My colleague suggested we use a different SMTP server that we use for the company. The SMTP server is not an open relay but are we still risking being put on a RBL?

Realtime Blackhole list (RBL) Question

Various techniques are used to prevent email spam (unsolicited bulk email). No technique is a complete solution to the spam problem, and each has trade-offs between incorrectly rejecting legitimate email (false positives) vs. not rejecting all spam (false negatives) - and the associated costs in time and effort. Anti-spam techniques can be broken into four broad categories: those that require actions by individuals, those that can be automated by email administrators, those that can be automated by email senders and those employed by researchers and law enforcement officials.

AntiSpam

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.