I found a regular email in the Spam folder. What should I do?


Spam detection uses heuristic and probabilistic methods; it is possible that a regular email is marked as spam (false positive cases). It is s a good idea to check your Junk E-mail folder (Spam folder in InSIS) from time to time.

1. You Have a Mailbox in InSIS [menu]

The mail application in InSIS does not provide tools for resolving misclassified emails. It is necessary to adjust the settings on the central mail server – send a request for correction to postmaster@vse.cz.

You can also try to influence the heuristic filtering on the central mail server – forward the email to nospam@vse.cz.

2. You Have a Mailbox in Office 365 [menu]

In Office 365, the server sorts the mail into the “Junk E-mail” folder. Some emails can also be included by Outlook (client).

2.1 Checking the Rules and List of Blocked Senders [menu]

First check:

    • Whether you do not have an own custom rule that places that email message in the Junk E-Mail folder.
    • Whether you do not have a sender on your blocked senders list:
      • In Outlook, on the Home tab of the top bar, click on the “Junk E-mail” menu and select the “Junk E-mail Options” item. Now check the items on the “Blocked Users” tab.
      • In the web interface, you can access the list of blocked users via Options. In the “Mail” group, expand the “Accounts” subgroup and include “Block or allow”.

2.2 Lists of Safe Senders and Recipients [menu]

Safe senders and recipients are domains and people whose emails should not be redirected to the Spam folder:

  • Safe senders – you can include specific addresses or entire domains. The addresses listed in your contacts are also considered safe senders (this can be canceled).
  • Safe recipients – for messages sent through distribution groups, you can add the addresses of these groups to the list of safe recipients.
>> click to display “Not Junk” in the web interface <<

You must be in the “Junk E-mail” folder. Select the misclassified message and then mark it as Not Junk – you will find the option in the top menu or in the context menu of the message in the list.

The following is a question of whether to pass the information to Microsoft.
The message is moved to the Inbox, the sender’s address is added to the safe senders.

>> click to view save senders and recipients in Outlook for Windows <<

You must be in the “Junk E-mail” folder even in Outlook. Then, either via the top Home tab or via the context menu, display the help menu for the junk mail:

Options available under this feature are:

  • Never block the sender – the sender will be classified as safe.
  • Never block the sender’s domain – all emails from that domain will be safe (including fraudulent emails).
  • Never block this group or mailing list – the recipient’s address (usually a newsgroup) is added to the safe recipient list.
  • Not Junk – the message will be moved to the Inbox. You will be asked if you wish to include the sender’s address as safe.