Interesting comment - never thought of that and indeed the default value for email logs is 365d. The backup however does not contain any log files, only sql dump and the uploads folder.
- Would altering this setting reduce the size of the .sql?
- Any reason why would I want to log a full year of email activity?
I’ve since moved to S3 stored image files, but never received response to my question regarding the /optimized folder, that still adds significant backup payload.