Mail: Permissions & Limits - Revision history

Steve at 10:37, 13 October 2022

2022-10-13T10:37:04Z

← Older revision		Revision as of 11:37, 13 October 2022
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	A number of general permissions can be set for each group in the ''Permissions & Limits'' subsection of the ''Mail'' tab.		A number of general permissions can be set for each group in the ''Permissions & Limits'' subsection of the ''Mail'' tab.

	These are heritable settings (see [[Group Inheritance]]). If you are not sure which settings would be applied to a user, look at the [[Mail Policy Modelling\|Policy Modelling]] report.		These are heritable settings (see [[Group Inheritance]]). If you are not sure which settings would be applied to a user, look at the [[Mail: Policy Modelling\|Policy Modelling]] report.

	These settings will also be inherited by all the descendent groups, unless explicitly overridden. If you need to override the inherited settings, untick the ''Inherit'' box of the setting and adjust it as appropriate.		These settings will also be inherited by all the descendent groups, unless explicitly overridden. If you need to override the inherited settings, untick the ''Inherit'' box of the setting and adjust it as appropriate.

Steve: Steve moved page Mail Permissions & Limits to Mail: Permissions & Limits

2022-10-12T09:39:50Z

Steve moved page Mail Permissions & Limits to Mail: Permissions & Limits

← Older revision

Revision as of 10:39, 12 October 2022

Steve at 09:10, 12 October 2022

2022-10-12T09:10:23Z

← Older revision		Revision as of 10:10, 12 October 2022
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	A number of general permissions can be set for each group in the ''Permissions & Limits'' subsection of the ''Mail'' tab.		A number of general permissions can be set for each group in the ''Permissions & Limits'' subsection of the ''Mail'' tab.

	These are heritable settings (see [[Group Inheritance]]). If you are not sure which settings would be applied to a user, look at the [[Policy Modelling]] report.		These are heritable settings (see [[Group Inheritance]]). If you are not sure which settings would be applied to a user, look at the [[Mail Policy Modelling\|Policy Modelling]] report.

	These settings will also be inherited by all the descendent groups, unless explicitly overridden. If you need to override the inherited settings, untick the ''Inherit'' box of the setting and adjust it as appropriate.		These settings will also be inherited by all the descendent groups, unless explicitly overridden. If you need to override the inherited settings, untick the ''Inherit'' box of the setting and adjust it as appropriate.

Steve: Created page with "Permissions & limits screenshot A number of general permissions can be set for each group in the ''Permissions & Limits'' subsection of the ''Mail'' tab. These are heritable settings (see Group Inheritance). If you are not sure which settings would be applied to a user, look at the Policy Modelling report. These settings will also be inherited by all the descendent groups, unless exp..."

2022-10-12T09:05:31Z

Created page with "alt=Permissions & limits screenshot|thumb|Permissions & limits screenshot A number of general permissions can be set for each group in the ''Permissions & Limits'' subsection of the ''Mail'' tab. These are heritable settings (see Group Inheritance). If you are not sure which settings would be applied to a user, look at the Policy Modelling report. These settings will also be inherited by all the descendent groups, unless exp..."

New page

[[File:Mailserver-permissions.png|alt=Permissions & limits screenshot|thumb|Permissions & limits screenshot]]
A number of general permissions can be set for each group in the ''Permissions & Limits'' subsection of the ''Mail'' tab.

These are heritable settings (see [[Group Inheritance]]). If you are not sure which settings would be applied to a user, look at the [[Policy Modelling]] report.

These settings will also be inherited by all the descendent groups, unless explicitly overridden. If you need to override the inherited settings, untick the ''Inherit'' box of the setting and adjust it as appropriate.

== Email clients can relay to external domains ==
Enabling this option will allow users and networks in this group to use third party email software to send mail to external systems. This option should only be enabled for internal networks and users with strong passwords. Allowing users with weak passwords to relay from external addresses could turn your system into a spam relay!

== Networks in this group never need to authenticate ==
Authentication is usually required when relaying email to external addresses from third party email software. Enabling this option will remove the requirement for networks in this group to be authenticated when they send email - this is typically required where the Opendium system is relaying mail from another internal mail server, such as Microsoft Exchange. Please be aware that incorrect configuration can turn your system into a spam relay!

== Bypass all mail restrictions ==
If either the sender or recipient of an email has this option enabled, emails will not be restricted by any mail filtering at all, irrespective of any other settings.

== Users can send mail to entire groups ==
Senders who are in a group that has this option ticked can send an email to an entire user group. For example, if you have a user group called ''Staff'' then an email to staff@example.com would be distributed to all users within that group.

Since this gives people the ability to email a potentially very large number of people at once, we recommend only enabling this for a small number of trustworthy users.

== Users can only send and receive internal mail ==
Users or networks who are in a group that has this option ticked are not allowed to send or receive email to or from any external address, they can only send and receive email to or from users within your organisation.

== Maximum size of an individual mail ==
It is usually desirable to restrict the maximum email size that a user can send or receive in order to prevent excessively large emails being sent. We recommend setting a size limit of no more than 25MB, since it is unlikely that another email server would accept emails over this size. Please be aware that when a file is attached to an email, it usually grows to 133% of its original size, due to the MIME encoding overhead.
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