mail.on_failure_only
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Specifies whether to always send collection update emails or only when an update fails.
Key: mail.on_failure_only
Type: Boolean
Can be set in: collection.cfg
Description
This options decides whether an email is sent for each collection update, or only for the failed ones.
Possible values:
true: Send an email only when the collection update fails.
false: Always send an email, every time the collection is updated.
If sent, the email is sent to the address set in admin_email.