Settings
Runtime settings of MetaDefender Cloud Email Security can be configured under Settings > General.
Retry
When scanning or relaying the email fails (e.g. the internal processing component or the relay SMTP server is not available), MetaDefender Cloud Email Security will retry.
Under Settings > General / Retry the retry count and the interval between each attempt can be configured.
Email/Attachment size restrictions
Maximum email and/or attachment size restrictions can be configured under Settings > General / Email.
You can configure a maximum total email size (un-decoded; including the size of all the headers, email bodies and all attachments) by enabling Restrict maximum email size and enter a desired limit.
An attachment size limit can also be configured by enabling Restrict maximum attachment(s) size and enter a desired limit. This setting refers to all the attachments of an email.
Anti-spam
With the Aggressiveness level MetaDefender Cloud Email Security’s anti-spam component can be configured how eager it should be when looking for (potential) spam.
Enabling the Add analytical email headers MetaDefender Cloud Email Security will add special headers to emails so that later it can track false positive or negative spam.
In the IP allowlist a list of IPv4 addresses can be specified for which anti-spam checks will be bypassed.
Configuration
Deployment mode
Deployment mode options are used to evaluate/test MetaDefender Cloud Email Security without necessarily affecting your existing email traffic. The following deployment modes are available:
Protection mode
Use this mode when you deploy MetaDefender Cloud Email Security in a production environment. This mode will protect your emails from malicious and untrusted content.** **
Out-of-band monitoring mode
Use this mode ONLY when you want to evaluate MetaDefender Cloud Email Security in an out-of-band scenario. This mode will NOT deliver any processed email. It requires you to send copies of emails to MetaDefender Cloud Email Security for processing.
Inline monitoring mode
Use this mode ONLY when you want to evaluate MetaDefender Cloud Email Security without making modifications to processed emails. This mode will NOT protect your emails from malicious or untrusted content.
A notification message will warn administrators when MetaDefender Cloud Email Security is in a monitoring mode.
Public server address
Settings > General / Configuration / Public server address is the IP or DNS address that will be used in URLs generated by MetaDefender Cloud Email Security (e.g. notifications, reports) to identify this server.
When this field is left empty there won't be any links in the notification and reports to this instance.
When setting this property please be aware that this address may be sent for recipients outside of your company (e.g. in a notification about password protected document).
