Fortunately it is just a "Presidential Message" as issued for most internal holidays and diplomacy. President Trump does not follow the example of the [Hussain] Occupation years with muslim holidays being formal affairs of state.
Dinners during Ramadan are Iftar and the day after Ramadan is Eid al-Fitr, with gatherings and feasts and faux prayers.
White House Ramadan ((17)) (attendee & video links not posted for length)
August 1, 2011 https://obamawhitehouse.archives.gov/the-press-office/2011/08/01/statement-president-occasion-ramadan
August 11, 2010 https://obamawhitehouse.archives.gov/the-press-office/2010/08/11/statement-president-occasion-ramadan
August 13, 2010 https://obamawhitehouse.archives.gov/the-press-office/2010/08/13/remarks-president-iftar-dinner
August 14, 2010 https://obamawhitehouse.archives.gov/blog/2010/08/14/president-obama-celebrates-ramadan-white-house-iftar-dinner
August 21, 2009 https://obamawhitehouse.archives.gov/the-press-office/remarks-president-barack-obama-ramadan-message
White House Eid al Fitr ((31))
July 6, 2016 https://obamawhitehouse.archives.gov/the-press-office/2016/07/06/statement-president-occasion-eid-al-fitr
July 6, 2016 https://obamawhitehouse.archives.gov/blog/2016/07/06/letters-president-celebrating-eid-al-fitr
July 21, 2016 https://obamawhitehouse.archives.gov/the-press-office/2016/07/21/remarks-president-eid-reception (late dinner)
July 25, 2016 https://obamawhitehouse.archives.gov/blog/2016/07/25/president-obama-hosts-eid-reception
July 16, 2015 https://obamawhitehouse.archives.gov/the-press-office/2015/07/16/statement-president-occasion-eid-ul-fitr
June 22, 2015 https://obamawhitehouse.archives.gov/the-press-office/2015/06/23/remarks-president-2015-iftar-dinner
June 23, 2015 https://obamawhitehouse.archives.gov/blog/2015/06/23/president-obama-hosts-ramadan-iftar-dinner-white-house
July 27, 2014 https://obamawhitehouse.archives.gov/the-press-office/2014/07/27/statement-president-occasion-eid-al-fitr
July 14, 2014 https://obamawhitehouse.archives.gov/the-press-office/2014/07/14/remarks-president-annual-iftar-dinner-july-14-2014 (dinner)
July 15, 2014 https://obamawhitehouse.archives.gov/blog/2014/07/15/president-obama-hosts-iftar-dinner-white-house
July 30, 2014 https://obamawhitehouse.archives.gov/blog/2014/07/30/celebrating-eid-and-reflecting-how-faith-works (July 30, 2014 article)
August 7, 2013 https://obamawhitehouse.archives.gov/the-press-office/2013/08/07/statement-president-occasion-eid-al-fitr
July 25, 2013 https://obamawhitehouse.archives.gov/the-press-office/2013/07/25/remarks-president-iftar-dinner
August 18, 2012 https://obamawhitehouse.archives.gov/the-press-office/2012/08/18/statement-president-occasion-eid-al-fitr
August 10, 2012 https://obamawhitehouse.archives.gov/the-press-office/2012/08/10/remarks-president-iftar-dinner
August 11, 2012 https://obamawhitehouse.archives.gov/blog/2012/08/11/president-obama-hosts-fourth-annual-iftar-dinner-white-house (dinner)
August 30, 2011 https://obamawhitehouse.archives.gov/the-press-office/2011/08/30/statement-president-occasion-eid-ul-fitr
September 10, 2010 https://obamawhitehouse.archives.gov/the-press-office/2010/09/09/statement-president-occasion-eid-ul-fitr
September 1, 2009 https://obamawhitehouse.archives.gov/the-press-office/remarks-president-iftar-dinner (dinner)
September 19, 2009 https://obamawhitehouse.archives.gov/the-press-office/statement-president-occasion-eid-ul-fitr
September 19, 2009 https://obamawhitehouse.archives.gov/blog/2009/09/19/eid-mubarak (blog)
August 21, 2009 https://obamawhitehouse.archives.gov/blog/2009/08/21/ramadan-kareem (blog)
The [HRC] State Department also held Eid dinner receptions. Except in 2012, after the Abedin-Muslim Brotherhood came to light, they rescheduled Eid. Instead of August 20 as the rest of muslims celebrated, the Stae Department scheduled their annual Eid reception for September 13, 2012.
morning of Sept 12 2012, Abedin email to HRC:
"the eid reception could not have been worse timing"
C06133349 Sep 12 https://wikileaks.org/clinton-emails/emailid/32997
Press Release Aug 19 2012
https://2009-2017.state.gov/secretary/20092013clinton/rm/2012/08/196684.htm
September 13, 2012 speech and video
https://2009-2017.state.gov/secretary/20092013clinton/rm/2012/09/197735.htm
2009 [HRC] Eid statement video
https://www.youtube.com/watch?v=1SZUenzxiAI
Wonder why the State Department would schedule the religious holiday dinner 3 weeks later?