Setting up an email client (IMAP, POP3, SMTP)

January 09, 2026 291 views

Setting up an email client (IMAP, POP3, SMTP)

These values apply to every mailbox on every domain hosted with CloudWeb, regardless of which hosting or plan the mailbox belongs to.

Server settings

Protocol Server Port Encryption
IMAP (incoming, recommended) cloudmail.sk 993 SSL/TLS
POP3 (incoming, alternative) cloudmail.sk 995 SSL/TLS
SMTP (outgoing, recommended) cloudmail.sk 587 STARTTLS
SMTP (outgoing, alternative) cloudmail.sk 465 SSL/TLS
Sieve (server-side filters and the out-of-office rule) cloudmail.sk 4190 STARTTLS

Username: the full email address (e.g. info@yourdomain.sk), not just the part before the @.

Password: the mailbox password – the one you set when creating the mailbox in the panel, not your CloudWeb panel password.

SMTP requires authentication on both ports (587 and 465); anonymous sending is not allowed.

Where to find these values in the panel

In the panel, on the hosting page, tab Email, sub-tab Mailboxes. Open the row actions for a mailbox and click the gear icon (Settings). The Email Settings dialog shows the server, port and encryption for IMAP and SMTP, plus the login username (the full email address), each with a copy button – the password is not shown there, since the panel does not know it in plain form. For POP3, the alternative SMTP port 465, and Sieve, use the values from the table above – the dialog does not list them.

Changing the mailbox password

In the same mailbox row, click the key icon (Change Password). The panel asks for a new password (at least 8 characters) and saves it directly on the mail server. The change takes effect immediately everywhere – any client or webmail still using the old password will get a login error until you enter the new one.

Automatic configuration (autoconfig / autodiscover)

Several clients can set the servers, ports and encryption themselves once you enter just the email address and password:

  • Mozilla Thunderbird – when adding an account it first tries http://autoconfig.<your-domain>/mail/config-v1.1.xml. The response contains exactly the values from the table above (IMAP 993 SSL/TLS, POP3 995 SSL/TLS, SMTP 587 STARTTLS, username = the full address).
  • Microsoft Outlook (desktop, new Outlook and the mobile app) – tries https://autodiscover.<your-domain>/…, then the DNS record _autodiscover._tcp, which points to cloudmail.sk.
  • Other RFC 6186-aware clients (e.g. Apple Mail/iOS, K-9, FairEmail) – use the DNS SRV records _imaps._tcp, _submission._tcp and _pop3s._tcp, which also point to cloudmail.sk.

CloudWeb creates these DNS records automatically when a mailbox is provisioned, if the domain uses our nameservers. If the domain's DNS is hosted elsewhere, the panel shows the list of records to copy to your DNS provider on the domain's record. Without these records you have to enter the servers, ports and encryption into the client by hand from the table above – the client still connects, it just is not pre-filled automatically.

Adding the account in the client

The exact menu wording differs between app versions. In most clients (Outlook, Thunderbird, Apple Mail, iOS Mail, Android, the Gmail app) the flow is: add account → manual setup (or "other account") → enter the email address and password → if the client does not find the settings itself, fill in the servers, ports and encryption from the table above.

Webmail

You can also access a mailbox through a browser without configuring a client – see Webmail.

Next steps

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