Hi @DGanasan,
I’m not aware of any default features that would allow you to create a per-month-property, that would likely require custom code (available in Operations Hub Professional).
Personally, I’m not a fan of the frequency cap. It’s not deliberate in what it’s suppressing and it doesn’t solve overall issue: too high of an email volume. My recommendation would be to run reports on the contacts which receive the largest amount of emails, checking which teams are responsible for those emails and then making sure that the volume is lowered, either via stricter workflow enrollment criteria or stricter recipient list criteria.
Otherwise you’ll always have the problem that potentially important emails are suppressed by the frequency cap while comparably unimportant emails go through. The feature does not really distinguish which, in my opinion, limits its effectiveness.
Best regards