De or het mailmoment?

The correct Dutch article is:

het mailmoment

Rule Words ending in -ment: usually het. See the rule

This word is not in the word lists we use to double-check answers.

How to use mailmoment

the mailmomenthet mailmoment
this mailmomentdit mailmoment
that mailmomentdat mailmoment
our mailmomentons mailmoment
your mailmomentjouw mailmoment
every mailmomentelk mailmoment
which mailmoment?welk mailmoment?
a big mailmoment / the big mailmomenteen groot mailmoment, het grote mailmoment