Hello,
we apologize to all our customers, who in the last couple of days have received multiple letters from our store.
It was found that within a few months part of our letters were not delivered. It was purely technical problems, all is fixed now. But, as a result of correction, recipients received all together letters that were not detained at all lately.
It was not spam, and now setting is fixed, so it won't repeat.
Once again - sorry.
Administration of UMKA.com