I sent an email to change the accounts, but I haven't received any response

[IT Infra팀]

I also manage the mail server, but there is no record of the emails being received on our mail server. The recipient email addresses are "gbscps@tmaxsoft.com" Please check.

[Barbara Szczesniak]

@IT Infra팀 Can you provide more information? What type of accounts? Who did you send this email to?

We are a community of Atlassian users helping other Atlassian product users. If you are waiting for a response from Atlassian Support, you should contact them directly at https://support.atlassian.com/contact/#/ 

[IT Infra팀]

The issue I inquired about has been resolved separately from the original request.
The account gbscps@tmaxsoft.com already exists, so it was not possible to change the account.
Thank you for your support.