.43 --> .44 broke Outlook 2007, Outlook 2010 IMAP?

[alexweissman]

Alternatively until you can get your clients to upgrade, you can temporarily re-enable TLS1 and TLS1.1 connections on your server by modifying your /etc/postfix/main.cf file, as described here:

Warning: TLS library problem when trying to send mail from PHPMailer after upgrade

Yup, definitely what I need to do soon. But I don’t want to risk a cascade of dependency failures (openssl -> php -> our application, for example) on my live server when we are nowhere near ready to fully upgrade our application. As a temporary patch until we can prepare our upgrade, I’ve made the following changes in MiaB to allow TLS1 and TLS1.1: Edit /etc/postfix/main.cf: Change the smtpd_tls_mandatory_protocols and smtp_tls_mandatory_protocols to: smtpd_tls_mandatory_protocols=!SSLv2,!SS…