Royal fans better check their mailboxes!

Kensington Palace has sent out cards on behalf ofMeghan Markle, sharing sweet thank you notes to those who wished the Duchess of Sussex ahappy 37th birthday last month.

“The Duchess of Sussex is so touched you took the trouble to write as you did on the occasion of her 37th birthday,” reads the back of the postcard, according to royal fanLoopyCrown3on Instagram. “It really was most thoughtful of you and Her Royal Highness sends you her heartfelt thanks and best wishes.”

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The letter appeared on official Kensington Palace stationary, with an envelope marked “royal mail” and a gold seal featuringQueen Elizabeth.

Miss out on the special note? There’s still time to wishPrince Harrya happy birthday — theroyal turned 34on Saturday.

Meghanspent her 37th birthday(her first as the Duchess of Sussex!) celebrating the wedding of one ofHarry’s oldest family friends, Charlie van Straubenzeeto Daisy Jenks.

Although the royal couple arrived at the church separately, as Harry was with other close pals of the groom helping with arrangements and ushering duties, the pair were seen holding hands together at the ceremony, as Harry gazed approvingly at his wife.

RELATED VIDEO:Meghan MarkleSteps Out withPrince Harryon Her Birthday to Celebrate a Friend’s Wedding

In 2014, Meghan wasplaying Rachel Zane onSuitsand was happily running her lifestyle blog, The Tig, as sheapproached her 33rd birthday.In a short essay she wrote to her followers on The Tig on her birthday, Meghan got candid about her struggle to accept herself.

Just four years later, her message is more powerful than ever, as the former actress isowning her new role as the Duchess of Sussex.

“I am 33 years old today. And I am happy. And I say that so plainly because, well…it takes time. To be happy. To figure out how to be kind to yourself. To not just choose that happiness, but to feel it,” she wrote at the time.

source: people.com