The Bat! 4.0.24.5 is available at http://www.ritlabs.com/download/files3/the_bat/beta/tb40245.rar
What's new in 4.0.24.5 since 4.0.24.4: [+] You can specify AES 128 bit and 256 bit for encryption when using S/MIME internal implementation [*] If a mail server was ill-configured to have different self-signed TLS certificates to send and receive mail, and these certificates had the same "Subject" but different key data, and the user have added the first certificate to the Trusted Root CA address book, the second certificate gave "Signature match failed" error, because The Bat! first uses certificates from address book and then from TLS sessions, and since these certificates had different "Subject" (which is prohibited by X.509), The Bat! did use key data from first certificate as though it was the second certificate. The "Signature match failed" error gave no clue to the user of how to resolve this problem. Now The Bat! have workaround for such ill-configured servers. In case of "Signature match failed" error during a TLS session, The Bat! tries to verify the certificate again, but in this time certificates transmitted in the TLS session have priority over the certificate from the address book. This avoids the error above mentioned. ________________________________________________________ Current beta is 4.0.24.4 | 'Using TBBETA' information: http://www.silverstones.com/thebat/TBUDLInfo.html