REPORT OF INDEPENDENT REGISTERED PUBLIC
ACCOUNTING FIRM

To the Trustees of Eaton Vance Mutual Funds Trust and
Shareholders of Eaton Vance Government Opportunities
Fund:

In planning and performing our audit of the financial
statements of Eaton Vance Government Opportunities Fund
(the "Fund") (one of the funds constituting Eaton Vance
Mutual Funds Trust) as of and for the year ended October
31, 2020, in accordance with the standards of the Public
Company Accounting Oversight Board (United States)
(PCAOB), we considered the Fund's internal control over
financial reporting, including controls over safeguarding
securities, as a basis for designing our auditing procedures
for the purpose of expressing our opinion on the financial
statements and to comply with the requirements of Form N-
CEN, but not for the purpose of expressing an opinion on
the effectiveness of the Fund's internal control over financial
reporting. Accordingly, we express no such opinion.

The management of the Fund is responsible for establishing
and maintaining effective internal control over financial
reporting. In fulfilling this responsibility, estimates and
judgments by management are required to assess the
expected benefits and related costs of controls. A fund's
internal control over financial reporting is a process
designed to provide reasonable assurance regarding the
reliability of financial reporting and the preparation of
financial statements for external purposes in accordance
with generally accepted accounting principles. A fund's
internal control over financial reporting includes those
policies and procedures that (1) pertain to the maintenance
of records that, in reasonable detail, accurately and fairly
reflect the transactions and dispositions of the assets of the
fund; (2) provide reasonable assurance that transactions
are recorded as necessary to permit preparation of financial
statements in accordance with generally accepted
accounting principles, and that receipts and expenditures of
the fund are being made only in accordance with
authorizations of management of the fund and trustees of
the trust; and (3) provide reasonable assurance regarding
prevention or timely detection of unauthorized acquisition,
use, or disposition of a fund's assets that could have a
material effect on the financial statements.

Because of its inherent limitations, internal control over
financial reporting may not prevent or detect misstatements.
Also, projections of any evaluation of effectiveness to future
periods are subject to the risk that controls may become
inadequate because of changes in conditions, or that the
degree of compliance with the policies or procedures may
deteriorate.

A deficiency in internal control over financial reporting exists
when the design or operation of a control does not allow
management or employees, in the normal course of
performing their assigned functions, to prevent or detect
misstatements on a timely basis. A material weakness is a
deficiency, or a combination of deficiencies, in internal
control over financial reporting, such that there is a
reasonable possibility that a material misstatement of the
fund's annual or interim financial statements will not be
prevented or detected on a timely basis.

Our consideration of the Fund's internal control over
financial reporting was for the limited purpose described in
the first paragraph and would not necessarily disclose all
deficiencies in internal control that might be material
weaknesses under standards established by the PCAOB.
However, we noted no deficiencies in the Fund's internal
control over financial reporting and its operation, including
controls for safeguarding securities, that we consider to be
a material weakness, as defined above, as of October 31,
2020.

This report is intended solely for the information and use of
management of the Fund and the Trustees of Eaton Vance
Mutual Funds Trust and the Securities and Exchange
Commission and is not intended to be and should not be
used by anyone other than these specified parties.

/s/ Deloitte & Touche LLP

Boston, Massachusetts
December 17, 2020