Symbiosis: /etc/ssl/ssl.combined missing on fresh install
Imported from https://www.github.com/BytemarkHosting/symbiosis/issues/125
/etc/ssl/ssl.combined seems to be missing on a fresh install, though referenced in the Exim config.
This has the effect of the following on SMTP STARTTLS
454 TLS currently unavailable
If clients mandate TLS, mail will be broken.
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