noun
spring-themed congratulatory postcard
A specific seasonal product: postcards with a cherry blossom design, sold by Japan Post every February. The name is a blend of さくら (cherry blossom) and メール (mail).
今年もさくらメールを買って、春の挨拶を送ろう。
Let's buy sakura mail again this year and send spring greetings.
さくらメールは毎年2月に発売される。
Sakura mail goes on sale every year in February.