Along with setting your email schedule, Interseller helps prevent emails on U.S. holidays (and days where emails are read least). These are the days that Interseller considers as U.S. holidays:

January 1, 2020 - New Year's Day
January 20, 2020 - Martin Luther King Jr. Day
February 17, 2020 - President's Day
May 25, 2020 - Memorial Day
July 4, 2020 - Independence Day
September 7, 2020 - Labor Day
October 12, 2020 - Columbus Day
November 26, 2020 - Thanksgiving Day
December 24, 2020 - Christmas Eve
December 25, 2020 - Christmas Day
December 31, 2020 - New Year's Eve

You can toggle off the setting to send emails during U.S. holidays in the "schedule" tab within your settings. 

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