4. Set a **strong password** — at least 12 characters with a mix of upper case, lower case, numbers, and symbols. Email accounts are common attack targets.
5. Choose a **mailbox size cap**. The default is usually fine; you can raise it later or via an [email upgrade add-on](/whp/add-ons/email-upgrades/).
Mail server hostnames are per-domain. Find the exact incoming and outgoing hostnames for your domain on the **Dashboard** page in WHP — that page lists the IMAP, POP3, and SMTP host names along with the recommended ports and security settings.
Send yourself a test message from another account (your personal Gmail, for example). It should arrive within a minute or two and be retrievable from both your client and webmail.
<Aside type="caution">
**SPF and DKIM records matter.** Without them, your outgoing mail will get flagged or rejected by other providers. If your domain is registered with us, we add these records automatically. If it's registered elsewhere, copy the SPF and DKIM records shown on the email account page into your registrar's DNS.
**Webmail isn't reachable.** DNS for the mail subdomain may still be propagating — wait an hour and try again. The exact URL is on the Dashboard page in WHP.
**Outgoing mail is bouncing or going to spam.** Check the SPF and DKIM records at your registrar. The email account page in WHP shows the exact records you should have.
**Client can connect on IMAP but not SMTP.** Some ISPs and corporate networks block outgoing port 587. Try sending from a different network to confirm; if the issue is your network, your ISP is the place to ask.