According to p. 95 of the MLA Handbook 8th ed. Spell out months in the body of your paper and abbreviate as follows in your works cited list:
January = Jan.
February = Feb.
March = Mar.
April = Apr.
May = May
June = June
July = July
August = Aug.
September = Sept.
October = Oct.
November = Nov.
December = Dec.
Olsen, Mary. "Re: Statistics from Student Population." Received by Jonas Conner, 15 Mar. 2015.
Author: Olsen, Mary.
Provide the last name and first names of the author of the email, followed by a period.
Title of message: "Re: Statistics from Student Population."
Use the title of message taken from the subject line and enclose it in quotations marks. End with a period.
Recipient: Received by Jonas Conner,
Use the words Received by followed by the recipient's name of the e-mail and a comma.
Date: 15 Mar. 2015.
The date of the e-mail using the appropriate abbreviation for the month. End citation with a period.
[The above information is based on p. 29 of the MLA Handbook 8th edition.]
@persiankitty. "We are low on cat food and kitty litter." Twitter, 28 June 2016, 4:45 p.m., twitter.com/persionkitty/status/2938479832.
Author: @persiankitty.
Provide the name of the hashtag of the tweet, followed by a period.
Message: "We are low on cat food and kitty litter."
Restate the entire full text of the message and enclose it in quotations marks. End with a period.
Twitter: Twitter,
Give the name Twitter in Italics followed by a comma.
Date and time: 28 June 2016, 4:45 p.m.,
The date and time of the tweet using the appropriate abbreviation for the month. End each part with a comma.
URL: twitter.com/persionkitty/status/2938479832.
Give the URL for hte tweet and end citation with a period.
[The above information is based on p. 29 of the MLA Handbook 8th edition.]