problem with Yandex mail for domain, mailing list

Question

Yandex

Good afternoon
Yandex mail for a domain (at least on our domain) mailing lists do not work again.
We lose customer letters, the internal work of the company is difficult.
Support is silent.
mail-blog.ya.ru/#y5__id28 - I can’t write anything at all in this thread. :(

db.tt/iIsnENgG

Where to go then?

Where can I migrate with 100 mailboxes without losing letters?

Answer 1

Google Apps .