[Infra] subscribe a-tune group failed

Hello,

I tried to subscribe to a-tune mail group.

I tried following 2 ways, but both failed.

way 1: 点击https://openeuler.org/zh/community/mails.html%E4%B8%AD%E7%9A%84%E5%88%97%E8%...

But it  responds: {"title": "409 Conflict", "description": "Subscription request already pending"}

way 2: send subscribe email to a-tune-join@openeuler.org

But is does not reply to me in several days

could you help check this?