Secure desktop email

Set up UKC email in Mozilla Thunderbird

Add your mailbox using the assigned UKC server hostname, encrypted IMAP and authenticated SMTP. Current Thunderbird normally discovers most settings automatically.

RecommendedIMAP
Incoming993 SSL / TLS
Outgoing465 SSL / TLS

Use your assigned UKC server hostname

Use a hostname such as ukc12.uk, as shown for your hosting service or by UKC support. Do not use a raw IP address or guess mail.your-domain; the assigned hostname matches the server certificate.

Confirm the mailbox works in webmail

  • Sign in to Roundcube with the complete email address.
  • Send and receive one external test.
  • Know the assigned UKC server hostname and mailbox password.
  • Update Thunderbird before adding the account.

Add the existing mailbox

  1. Open Thunderbird, select the application menu, then New Account and Existing Email.
  2. Enter the sender name, complete email address and mailbox password.
  3. Select Continue and review the discovered settings.
  4. Choose IMAP so messages and folders remain synchronised across devices.
  5. If discovery is wrong, select Manual configuration and enter the secure settings below.
  6. Select Done, then send and receive an external test.

Secure UKC mail settings

Username
Your complete email address
Incoming server
Your assigned UKC hostname
IMAP
Port 993, SSL / TLS, normal password
POP alternative
Port 995, SSL / TLS, normal password
Outgoing server
Your assigned UKC hostname
SMTP
Port 465, SSL / TLS, normal password
SMTP alternative
Port 587, STARTTLS

SMTP authentication is required. Use the complete email address and mailbox password.

Read the part of the connection that failed

Certificate warning
Replace the server name with the assigned UKC hostname.
Authentication failed
Retype the full address and verify the password in Roundcube.
Receives but cannot send
Review SMTP port, encryption and authentication.
Timeout
Check the hostname and try a different trusted network.

Thunderbird still will not connect?

Send us the mailbox address, assigned UKC server, incoming and outgoing ports, encryption choices, Thunderbird version and exact error. Never send the password.

Ask the Email team

Was this answer helpful?

« Back