Muirfield Golf Club is holding a second ballot on whether to admit female members.
The Scottish club, which is owned and run by the Honourable Company of Edinburgh Golfers, previously voted to stick with its male-only policy last May.
A statement read: "The postal ballot will be independently scrutinised and the outcome is expected to be announced in mid-March 2017.
"Voting in favour of the resolution to admit women as Members is recommended, unanimously, by the captain, captain nominate and the club committee of the Honourable Company."
The R&A announced the club would not host the Open with the current policy in place, causing Muirfield to announce it would have a re-vote, which was subsequently delayed.
Two-thirds of voters must back lady members for it to become policy – only 64% voted in favour last time.
Muirfield has staged the Open 16 times, first in 1892.