Check this option to have KMail store the password. If KWallet is available the password will be stored there which is considered safe. However, if KWallet is not available, the password will be stored in KMail's configuration file. The password is stored in an obfuscated format, but should not be considered secure from decryption efforts if access to the configuration file is obtained.
Brithwch y dewisiad yma i wneud i KMail gadw' r cyfrinair SMTP yn ei ffeil ffurfweddiad. Cedwir y cyfrinair mewn fformat drysedig, ond ni ddylir ei ystyried yn ddiogel o ymdrechion datgelu os sicrheir cyrchiad i' r ffeil ffurfweddiad.