SSL

SSL for mail and webmail - why a mail app asks about certificate

A mail client checks whether it connects to a server name matching the certificate. A wrong server address triggers a warning.

When this matters

After DNS migration or configuration changes, the mail client may remember an old server name or connect to a domain without valid SSL.

SSL certificate in mail: IMAP, SMTP, webmail, server name, DNS, SNI and typical mail client warnings.

Practical checklist

  • use the server name matching hosting configuration
  • check SSL for webmail and mail
  • update settings on phones
  • do not permanently accept an unknown certificate without checking

How Hostilla.pl helps

Hostilla support can provide the correct server name and check whether the issue is DNS, certificate or client settings.

What to prepare before contacting support

If you need support, include the domain, account name, time of the problem, exact error message, recent changes and one example URL or mailbox. This lets support check DNS, SSL, mail logs, PHP, database, backups and application configuration faster.

Related Hostilla.pl topics

Next useful steps

This guide is part of a topical cluster. Use the links below to continue through related Hostilla.pl instructions.