Free version and Pro version

Mail Log comes in two versions: the Free version and the
Pro version. Both are built from the same source and are updated the same way —
they differ only in which features are unlocked.
The split follows one sentence: What was sent? is answered by the Free version.
Does it arrive? is answered by the Pro version.
What each version does
  
    
Feature
Free version
Pro version
  
  
    
Logging of every sent e-mail, including a complete outage of the outgoing mail server
yes
yes
    
Dashboard, log list, detail view, Message-ID
yes
yes
    
Resending, CSV export, raw message download
yes
yes
    
Encryption, masking, retention rules, log and display rules
yes
yes
    
Notification when delivery fails
yes
yes
    
Domain health: status panel on the dashboard
yes
yes
    
Automatic retrying of failed sends
—
yes
    
Backup send route: a second way out when the first one fails
—
yes
    
Rule-based send routes: particular messages over a different server
—
yes
    
Periodic report by e-mail
—
yes
    
Second alert channel over a web address
—
yes
    
Domain health: what to do about each finding
—
yes
    
Domain health: several domains
—
yes
    
Domain health: alert when a check starts failing
—
yes
    
Return channel: fetch and sort bounce reports
—
yes
    
Suppression list: dead addresses are no longer written to
—
yes
    
Undeliverable rate on the dashboard, badge in the log list
—
yes
    
DMARC evaluation: who sends in your name, and whether it gets through
—
yes
    
DMARC: judge the sources, trend, share on the dashboard and in the report
—
yes
    
Take DKIM selectors from the reports and check them too
—
yes
    
DKIM signing: sign outgoing mail with a key of your own
—
yes
    
GDPR information and erasure through Joomla's privacy administration
—
yes
  
  
The Free version is not cut down by the existence of the Pro version.
  Everything you use in the Free version today stays exactly as it is — the Pro version only
  adds.
How to tell which version you have
Open Mail Log → Queue. If you see a list, you have the Pro version. If you see a short
explanation of what the queue does instead, the Free version is installed.
Moving from the Free version to the Pro version
  
Download the Pro version from your customer account on graup-it.de.
  
In Joomla, upload the package file under System → Install extensions.
  
That is all. Joomla recognises the existing installation and updates it — your logs,
  settings and permissions are kept in full.
The update source is switched over automatically, so from then on you receive updates of the
Pro version. Your download key stays the same.
Back to the Free version
The way back works the same: install the Free version over the Pro version and it becomes the
Free version again. Your log entries are kept in full.
What happens to the features of the Pro version:
  
Messages waiting in the queue are not deleted. They stay where they are and
  simply stop being worked through. Install the Pro version again later and they carry on;
  otherwise the retention period clears them out eventually.
  
Your settings are kept, including those of the Pro version. You still see
  the fields concerned in the options, but you can no longer change them. That is deliberate: a
  field you can operate that then does nothing is worse than a locked one. Move back to the full
  version and everything stands as you set it up.
  
The queue rule set is hidden, not deleted. It is the one setting that cannot
  be locked technically, so in the Free version it disappears altogether. It is still stored.
  
Bounces and the suppression list stay stored. The mailbox is no longer
  fetched and the two screens show an explanation instead of the lists; the data sits there
  unchanged and is available again after moving back.
  
DMARC reports and your verdicts about the sources stay too. Only no new
  ones are added.
  
DKIM signing stops. Outgoing mail is no longer signed from then on - the
  key stays where it is, and the published DNS record does no harm. After moving back, signing
  resumes without anything further to do.
  
One exception: the privacy plugin stays installed and active. When you move
  down, Joomla does not remove parts that no longer belong to the new package. GDPR information and
  erasure requests therefore keep covering the mail log.
  
That is left as it is on purpose: a privacy feature that switches itself off quietly leaves a
  gap nobody notices — and that gap is exactly what it was built against. If you do want it gone,
  uninstall the Privacy – Mail Log plugin by hand in the extension manager.
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