Transfer e-mail to my webhost, but not domain

Hello,

I own a domain name with hostmonster, but I am letting someone use it by using their nameservers. Now I’ve been hired to manage the website, and I need to hold off on changing back the nameservers, but I need to get access to the e-mail. We need to get bulk mailing working, but I think the other server has a daily limit smaller than our 921, so I want to import the list and use something like DADA for the time being. But is there a way to do that without changing the nameservers back to default?

Any other suggestions on bulk email are much appreciated. I wanted to use Google apps for the organization, but there seems to be a 500-address cap on the email feature.

THANK YOU!

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