mdbox saving: Fallback to using non-exact mail size if exact isn't available. The size is used only to check if it would make mdbox file become too large.
mdbox saving: Fallback to using non-exact mail size if exact isn't available.
The size is used only to check if it would make mdbox file become too large.

--HG--
branch : HEAD

dscho/dovecot,dscho/dovecot,dscho/dovecot,dscho/dovecot,dscho/dovecot