What is OfficialMail?
OfficialMail is business email on your own company domain. Start with one free primary mailbox, then add team accounts and AI mail summaries on the Growth plan when you need them.
NEWOne primary mailbox free · Growth plan KRW 3,900 per member/month (VAT excluded) ·Use it immediately after connecting your domain
OfficialMail FAQ | Free Business Email and Domain Setup
Answers about the free primary mailbox, domain connection, AI summaries, team expansion, and billing.
Answers about the free primary mailbox, domain connection, AI summaries, team expansion, and billing.
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Start free
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Domain connection
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AI summary
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Team expansion
Questions to review before adoption, organized by topic.
Review the free primary mailbox and domain connection; AI summaries and member expansion are available on the Growth plan.
Start
What does the Free plan include?
The Free plan includes one primary mailbox, webmail, the mobile and PC apps, and spam filtering. Sending is limited to 30 messages per day. Mailbox and File Drawer storage are 2GB each, while regular attachments and complete incoming messages are each limited to 25MB per message. Large attachments and external mail app access require Growth.
Domain and AI
What DNS records do I need to connect my domain?
Set the MX record for incoming mail and SPF and DKIM records for sender authentication in your domain's DNS management screen.
What does the AI mail summary do?
On the Growth plan, AI Assist Bridge highlights the request, points to check, and a reply direction in long business emails. It is not included in the Free plan.
Team operations and billing
What happens when I reply to an AI relay email?
On the Growth plan, when the relay is configured, your reply to the summary email is forwarded to the sender of the original message.
Can I connect Outlook or another external mail app on Free?
No. External IMAP, POP3, and SMTP access starts with Growth and requires a dedicated external-access password. You can still sign in to OfficialMail web, mobile, and PC apps with your account password on Free.
What are the Growth attachment and automation limits?
Regular attachments and complete incoming messages are each limited to 40MB per message. Large attachments can be up to 250MB per file and expire after 30 days or 100 downloads, whichever comes first. File Drawer storage is 10GB per user. Scheduled auto-send and the sending API are available on Growth.
When should I add a team account?
Add a separate account when support, sales, or operations need distinct owners and individual mail histories.
Will I get a refund if I add and immediately remove a member?
Removing a member immediately does not refund the charge for adding that member. Confirm how many accounts you need before adding them.
Separate what to check before adoption from what to operate afterward.
Business email is more than an inbox: it preserves records, trust, and accountability between a company and its customers.
Operational checks
Separate customer support, partnerships, and billing by address and folder.
Use company accounts so records remain when ownership changes.
If mail bounces or enters spam, review DNS authentication and the message authentication results.
Key points
An official address on your company domain helps customers recognize a trusted channel.
Review MX, SPF, DKIM, and DMARC to manage receiving and sender authentication together.
Start with a primary mailbox and expand the team and automation only when operations grow.
Operational standards can be viewed across three areas.
Company domain address
Use a recognizable official address such as contact@yourdomain.com.
Guided DNS connection
Add MX, SPF, DKIM, and DMARC one step at a time and verify their public status.
Expand when the team grows
Start with the primary mailbox and add member mailboxes when roles appear.
You do not need to start with a complex setup.
Start in an order a small team can operate, then add features and accounts when needed.
Choose the domain and primary address.
Choose your company domain and primary address.
Find where DNS is managed.
Enter the guided DNS records and verify their public status.
Enter the provided records exactly.
Test with an external address, then publish the official address on your website and customer materials.
Verify the connection and test sending and receiving.
Choose your company domain and primary address.
Related topics
Business email
One company mailbox and webmail are free. Team mailboxes and AI summaries are available on the Growth plan.
Domain email
Create official addresses such as contact@ or support@ on your company domain and configure MX, SPF, and DKIM.
AI email summary
Receive concise summaries of key points, action items, and reply direction for incoming business emails.
Team mailboxes
Keep your primary address and add separate mailboxes for support, sales, and operations as your team grows.
Official email is the first touchpoint where customers judge a company.
Create the primary mailbox first, then add domain connection and team expansion in the order you need.