"Wanna" ransomware outbreak. Please see this Sophos article sophos.com/kb/126733 for advice on how to protect your organization. Immediate action recommended.
How to test Smarthost authentication via the command line on Sophos UTM.
Known to apply to the following Sophos product(s) and version(s)
Sophos UTM Software Appliance
To test SMTP authentication you need a Linux system with installed tool 'mimencode'.
printf 'username' |mimencode
printf 'password' |mimencode
telnet <smarthost> 25
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