Product manual

GFI MailEssentials 13 Troubleshooting and support | 262
13.3 Scanning engines &filters
Issue encountered Solution
Spam is delivered to users mailbox Follow the checklist below to solve this issue:
1. Check that GFI MailEssentials is not disabled from scanning emails. For
more information, refer to Disabling email processing (page 252).
2. Check if all required filters are enabled. For more information, refer to
Anti-Spam filters (page 101).
3. Check if local domains are configured correctly. For more information,
refer to Local domains (page 222).
4. Check if emails are passing through GFI MailEssentials or if GFI
MailEssentials is bound to the correct IIS SMTP Virtual Server.
5. Check if '%TEMP%' location (which by default is the ‘C:\Windows\Temp’
folder) contains a lot of files.
6. Check if the number of users using GFI MailEssentials exceeds the number
of purchased licenses.
7. Check if whitelist is configured correctly. For more information, refer to
Whitelist (page 130).
8. Check if actions are configured correctly. For more information, refer to
Spam Actions - What to do with spam emails (page 135).
9. Check if Bayesian Analysis filter is configured correctly. For more
information, refer to Bayesian Analysis (page 128).
For more information how to solve this issue refer to:
http://go.gfi.com/?pageid=ME_SpamChecklist
Email Blocklist, Whitelist and/or
Content Filtering pages take long to load
or appear to hang
Limit the amount of entries in the lists to 10,000.
SpamRazer updates not downloading 1. Ensure that your license key is valid.
2. Ensure that the required ports are open and that your firewall is
configured to allow connections from the GFI MailEssentials server. For more
information, refer to Firewall port settings (page 27).
3. Ensure that, if applicable, proxy server settings for connection to Internet
are correct.
Emails are not being greylisted To verify the operation of Greylist:
Step 1: Confirm that Greylist is enabled
From the Greylist properties ensure that Enable Greylist is selected.
Step 2: Verify excluded addresses
From the IP and Email exclusions in Greylist properties, ensure that there
are no incorrect exclusions (such as *@*.com).
Step 3: Use esentutl.exe to ensure the Greylist database is not
corrupted.
For more information refer to: http://go.gfi.com/?pageid=ME_esentutl
Receiving spam emails from my domain. Some Spam emails contain a fake 'SMTP FROM' email address consisting of the
same domain as the recipient. Thismay seem as if the emailis coming from a
local user.
1.Enable Sender Policy Framework from within SpamRazer anti-spam filter,
to block emails originating from spoofed addresses. For more information,
refer to SpamRazer (page 102).
2. Create an SPF record for your domain. For more information refer to
http://go.gfi.com/?pageid=ME_CreateSPFRecord.
3. Ensure that SpamRazer is configure to run at a higher priority than the
Whitelist module. For more information, refer to Sorting anti-spam filters by
priority (page 138).