[DATE]

Our records as of [DATE]  indicate that we have not received your proxy vote. We
want you to know that your vote matters!

Dear Shareholder:

We  recently  sent you a package  containing  a proxy  statement  that  provided
detailed  information  regarding proposals affecting the Loomis Sayles Funds and
IXIS Advisor Funds  (formerly CDC Nvest  Funds).  Our records  indicate that you
have not yet responded. Your vote is important.  Please take some time to review
the  document  and vote your  shares  today.  If your vote and this  letter have
crossed in the mail, we thank you for your response.

PLEASE RESPOND BY [DATE]
Your vote is needed prior to the  shareholder  meeting,  which is scheduled  for
June 2, 2005 at 2:00 p.m.  Eastern time at the offices of IXIS Asset  Management
Advisors, L.P. at 399 Boylston Street, 10th Floor, Boston,  Massachusetts 02116.
There are three convenient methods for voting your shares:

     o To vote  electronically by Internet,  visit  www.ixisadvisorfunds.com  or
www.loomissayles.com,  where you also will find  copies of the proxy  letter and
the proxy  statement.

     o Call toll-free 866-241-6192 to vote on our automated telephone line.

     o Return the enclosed proxy card in the postage-paid envelope provided.

If you plan to vote electronically by Internet or by telephone,  please see your
proxy card for more information and helpful instructions. You also may receive a
telephone call from a proxy solicitation firm to remind you to vote your shares.

Thank you for your cooperation in voting on this important proposal. If you have
any questions,  please call  800-225-5478.  One of our  representatives  will be
happy to provide you with the information you need.

Sincerely,
John T. Hailer
President, IXIS Advisor Funds and Loomis Sayles Funds II

Robert Blanding
President, Loomis Sayles Funds I

IXIS Asset Management Distributors, L.P.
www.ixisadvisorfunds.com
399 Boyston Street
Boston, Massachusetts 02116