How to set up email accounts in cPanel
Create mailboxes, configure your mail client with the correct IMAP/SMTP settings, and set up SPF, DKIM, and DMARC for reliable email delivery.
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Your UnderHost shared hosting account supports as many email addresses as you need on your domain. This guide covers creating mailboxes in cPanel, connecting a mail client, and configuring the DNS records that keep your email out of spam folders.
Create an email account
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Log in to cPanel
Access cPanel via your welcome email link or at
https://yourdomain.com:2083. If you need help logging in, see How to log in to cPanel. -
Open Email Accounts
In cPanel, scroll to the Email section and click Email Accounts.
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Click Create
Click the + Create button. Enter the mailbox name (the part before @), select your domain, set a strong password, and optionally set a storage quota. Click Create.
Set a quota per mailbox to prevent one account from consuming all available disk space. A quota of 500 MB–2 GB is reasonable for most business email accounts.
Mail client settings
Use these settings to configure Outlook, Thunderbird, Apple Mail, or any other mail client:
| Setting | Incoming (IMAP) | Outgoing (SMTP) |
|---|---|---|
| Server | mail.yourdomain.com | mail.yourdomain.com |
| Port (SSL) | 993 | 465 |
| Port (STARTTLS) | 143 | 587 |
| Security | SSL/TLS | SSL/TLS or STARTTLS |
| Username | Full email address (e.g. you@yourdomain.com) | |
| Password | Email account password set in cPanel | |
Use IMAP (port 993) rather than POP3. IMAP keeps mail synchronized across all your devices. POP3 downloads and typically deletes mail from the server, which can cause problems if you access email from multiple devices.
Webmail access
You can access your email through a browser without configuring a mail client. Navigate to:
https://yourdomain.com/webmail
Log in with your full email address and password. cPanel offers Roundcube and Horde webmail clients. Roundcube is the most modern and user-friendly.
SPF, DKIM & DMARC
These three DNS records are essential for email deliverability. Without them, messages sent from your domain are far more likely to be marked as spam.
SPF (Sender Policy Framework)
SPF declares which mail servers are authorized to send email for your domain. cPanel usually creates an SPF record automatically, but you can verify it in cPanel → Email Deliverability.
A typical SPF record for UnderHost looks like:
v=spf1 +a +mx +ip4:YOUR_SERVER_IP ~allDKIM (DomainKeys Identified Mail)
DKIM signs outgoing emails with a cryptographic key so receiving servers can verify they weren't tampered with. In cPanel, go to Email → Email Deliverability and click Repair next to your domain to enable DKIM automatically.
DMARC (Domain-based Message Authentication)
DMARC tells receiving mail servers what to do with emails that fail SPF or DKIM checks. A basic DMARC record:
v=DMARC1; p=none; rua=mailto:admin@yourdomain.comStart with p=none (monitor mode) before switching to p=quarantine or p=reject.
Troubleshooting
mail.yourdomain.com. Verify with the Email Check tool. Also confirm the mailbox isn't over quota.Related: How to access webmail (Roundcube) | Configuring email in Outlook, Thunderbird, and Apple Mail | Email client settings-IMAP, POP3, and SMTP for UnderHost | Why is my email going to spam?
Need email hosting?
UnderHost shared and managed hosting include mailbox, webmail, DNS, SPF/DKIM, and email support for your domain.
