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faq:which_versions_of_windows
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adminapi
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421 4.3.2 VPOP3 SMTP Server access disabled - content scanner problem!
421 4.3.2 VPOP3 SMTP Server access disabled - low memory!
421 4.3.2 VPOP3 Too many connections from your IP address - try later
450 4.3.2 Content Filter Timeout
535 Authentication Failed
550 5.7.1 Recipient Prohibited (x)
550 5.7.1 Relaying not allowed! Bad sender IP address
550 5.7.1 Unable to Relay for...
550/553 Not Permitted error from BT Internet's mail servers
552 5.2.3 Message too large - contact your administrator
Error 1068 - the dependency service or group failed to start
1069 or 7000 Login Failure error when starting VPOP3DB service
Error 1348 - The validation information class requested was invalid
Socket Error 10047 - Addresses in the specified family cannot be used with this socket
Socket Error 10048 - Specified Address Already in Use
Socket Error 10049 - The specified address is not available from the local computer
Socket Error 10053 - An established connection was aborted by the software in your host machine.
Socket Error 10054 - The virtual circuit was reset by the remote end
Socket Error 10055 - No Buffer Space Available
Socket Error 10060 - Operation Timed Out
Socket Error 10061 - The attempt to connect was forcefully rejected
Socket Error 10503 - No More Data
Socket Error 11001 - Host not found (authoritative answer)
Socket Error 11002 - Host not found (Non-Authoritative answer)
How to Access VPOP3's WebMail
Add a user
Allow Remote Access to VPOP3 Mailboxes
How To Allow Mail Relay Through VPOP3
Alternative method of automatically starting VPOP3
Android - Stock Client
Archiving not saving messages on a shared drive
Attachments have been removed or renamed
How to automatically forward spam to the PSCS spamtrap
Autoresponders / Out of Office
Autoupdate process failed with error code 786432
Avast for VPOP3 Error Codes
Backscatter
How to Backup VPOP3
VPOP3 Webmail/admin service and/or Status service is not listening on correct IP addresses or ports
bccs
C++ Error Popup
Calendars in Mozilla Thunderbird
Configuring Calendar on iOS
Calendars on eM Client
Calendars
Can't alter dates in Autoresponder Rules
Changing a user's password
How to Open a Command Prompt
Compatibility with SpamPal
Accepting Incoming SMTP through a router
Configure Email Signatures
Configure SRS
configuring_vpop3av_to_detect_macros_puas
Controlling VPOP3 via Email
Copy Outgoing mail
How to Create a Connection
create_a_mail_collector
How to create a Mail Sender
How to create an SSL Certificate
Creating Extra SMTP Services
Custom filtering incoming mail
Daily Summary is not reporting all Sent messages
Data stream contained NUL character
Database Backup Failed
Database & Disk Caching
Database Issues
Database Maintenance
VPOP3 Database Size
How to delete a Mail Collector or Connection
How to Delete a User
Delete an outgoing message
Delete OutQueue messages directly from the database
determining_vpop3_server_address
dns_servers_for_internal_external_access
Don't download big messages during the working day using Download Rules
Download Rules
How to download VPOP3
duplicated_messages
How to send a fax by email using the VPOP3 FaxServer
Emptying a user's mailbox
How to configure Encore 32 Estate Agent Software
How To Encrypt Sessions
-ERR Can't open the message file - it's gone!
-ERR Mailbox Locked error
-ERR Password supplied for "xx" is incorrect
-ERR Unknown User
Error 0x80040201 when sending mail in Outlook
Error creating Service Entry (VPOP3) - 5
Error expanding recipient - Nesting Level too deep
Error message after sending RCPTTO: - error 0 - text 550 5.7.1 Relaying not allowed! Bad sender IP address
Error Message Handling
Error Messages
"Error Sending Message After Authentication" in Webmail
How to estimate Database Upgrade Time
Exceptions
Setting up VPOP3 to work with Exchange 2003
Exchange 2007
Fax Printer Driver Address Book
How to filter attachments
Find the IP address of the VPOP3 Computer
How to Forward Messages to an External Address
Forwarded Emails Not Arriving
French Webmail Language File
Full Text Search
Initial Configuration Tasks
General instructions for setting up an email client
German Webmail Language Page
IMAP4 'Ghost Folders'
global_address_book
handling_database_backups
Handling mail for multiple incoming domains
How to 'share' domains between Exchange and VPOP3
How to tell VPOP3 that some users in the local domain are not to be handled by VPOP3
"How To" Articles
Configuring iCal on Mac OSX to connect to VPOP3's CalDAV service
ignoring_specific_detected_viruses
Using IMAP4 with VPOP3 Enterprise
Inbox size is zero but mailbox size is not zero
Incoming Mail
Incoming SMTP Feed
Initial User
How to install the VPOP3 Status Monitor on other PCs
Install VPOP3 using external PostgreSQL database
How to Install VPOP3
Installation checklist
Installation conficts
Installation Errors
We installed a new router and now nothing works
How to install PostgreSQL to use another port
Internationalisation
Internet Explorer 10 Issues
SMTP error 'Invalid HELO name'
Setting up an iPhone/iPad/iPod Touch
Is it possible to stop messages that VPOP3 downloads from being marked as read?
The ISP needs POP3 before SMTP authentication
The ISP needs SMTP Authentication
ISP needs SSL connection
ISP needs you to connect on port 587
LAN Forward Warning: 452 (4.3.1 Insufficient system resources)
licence_activation_not_working
How to limit size of sent mail
Localhost missing from Vista HOSTS file
Locked Accounts
lost_password
Mail Not Downloading From ISP
How to make VPOP3 re-download POP3 messages from the ISP
Make VPOP3 retry outgoing messages immediately
Manually installing the PostgreSQL Database Server
Many instances of Postgres.exe are running
Message Downloads Not Completing
Messages being put into an 'Unwanted' folder
Move the message store - alternative method
How To: Move VPOP3
How to move messages between users
How to configure Mozilla Thunderbird
MX Send Warning - .....
Outlook/Windows Messaging reports "No transport provider is available"
Trying to perform administrative tasks without rights
Not Working As Expected
How to Obtain Error Logs
How to Obtain Message Headers
Obtaining Windows Event Log
Out of Disk Space When Sending Mail
Outbound Messages Not Appearing in Monitor Target Mailbox
Outgoing Mail
How to configure Outlook 2003
How to configure Outlook 2007
How to configure Outlook 2010
Outlook behaviour when deleting messages from IMAP4
Outlook not able to connect to VPOP3 Enterprise v6.8 when using SSL/TLS
Outlook / Outlook Express is sending mail repeatedly
Performance Requirements
Performance Tuning
ping_test
VPOP3 - POP3 Client Connection Problem
VPOP3 - POP3 Client Problem
POP3/Webmail/IMAP4 can't see a user's messages, but the administrator can
PostgreSQL Replication
PostgreSQL server won't start due to damaged log files
Problems with installing PostgreSQL during VPOP3 Installation
Problems accessing VPOP3 Settings
Problems sending mail via BT from your own domain
Problems sending messages to spam@<your domain>
quarantine_report_email_has_invalid_links
Spam Quarantine
RBL Checking not working in VPOP3 Enterprise
recover_deleted_messages
recover_registry_settings_from_a_dead_windows_installation
Recovering messages from corrupted database into fresh database
Redirect message for a user if a sender is a particular email address
How to Reinstall VPOP3
Remote Access to VPOP3 without a permanent Internet connection
How to remove messages from the outbound queue
How to Remove a User from the Everyone List
Repairing corrupted database
Require SMTP Authentication
reset_admin_access_restrictions
How to Restore a backup of VPOP3
Restore a database backup
Restore Deleted Calendars
Restore selected mail folders or mailbox in VPOP3 v5 or later
Restore a single user's mailbox or folder in v3 or v4
Restricting the number of recipients sent to
Restricting the number of messages sent
Route MX Sent (Direct) Outbound Mail Through Your ISP
Router Problem error messages
SAVSERVICE.EXE runs at 90%+ and slows the computer down
Seeing where a message came from
Sender Domain Must Resolve
Sender Policy Framework / SPF
sending_different_users_mail_separately_using_mx_dns_overrides
sending_different_users_mail_through_different_isp_relay_accounts
sending_mail_failing_with_an_error_about_a_blank_sender_or_sender
Sending mail from different email addresses or domains
Sending mail through your Gmail account
How to Set a User as Administrator
Setting up VPOP3 to work with Microsoft Exchange
Setup steps for multiple POP3 accounts at the ISP
Sharing IMAP4 folders
Signing outgoing mail with DKIM
VPOP3 - SMTP Client Connection Problem
VPOP3 - SMTP Client Problem
SMTP Rule Example - restrict who can send to a local email address
SMTP Rules
Software conflicting with database service
Some PCs cannot access VPOP3 when VPOP3 is connected to the Internet
Spam filter / Content filter scripts
spam_filter_false_positives
Spam filter not working
Spanish Webmail Language File
How to start VPOP3
Status Monitor is open during installation
VPOP3 Status Service Disabled
How to stop VPOP3
The message could not be loaded. Please return to the Quarantine page and try again
Timeout problems downloading/uploading messages with attachments
Timeout while VPOP3DB is starting
"Too many logins" error message
Total Rebuild of Database
Training the VPOP3 Spam Filter
Transmission Receipt Message
Troubleshooting Tips
turning_the_spam_filter_on_or_off
Video Tutorials
Unable to access Webmail/Admin when using Kaspersky Antivirus/Internet Security
Undelete Messages in VPOP3 Enterprise v5 or later
uninstalling_vpop3av
How to upgrade your VPOP3 licence
How To Upgrade VPOP3 to version 5 or later
How to upgrade VPOP3 to version 7 or later from version 6 or earlier
Upgrading VPOP3 to version 8.x from v7 or earlier
Upgrading VPOP3 to version 9.x from v7 or v8
How To Upgrade VPOP3
Upgrading PostgreSQL Database Software
Use Download Rules for incoming POP3 message filtering
How to use the VPOP3 Status Monitor
Spam Filter User Documentation
User receiving other users' messages
User Administration
Using a Mobile Phone with VPOP3
Using VPOP3 Advanced Features with LAN Forwarding
Using the Message Archive
Using the VPOP3 Spam Filter
Using VPOP3 Spam Filtering with LAN Forwarding
Using VPOP3 with Microsoft Exchange Server
How To Move VPOP3 Version 2 to a New Folder/Drive on the same PC
How To Move VPOP3 Version 2 to a New PC
v3/4 - Move the message store to a new folder/drive
How to move the VPOP3 Message Store to a new PC
How to move VPOP3 V3 to a new folder
Move VPOP3 Version 3 or 4 to a new PC
v5 - Move the message store to a new folder/drive
How to move VPOP3 V5+ to a new folder
Move VPOP3 Version 5 (or later) to a new PC
VPOP3 2.x crashes when user tries to download mail
How To Setup VPOP3 Service Security
Error message: VPOP3 Alert - Non-existent user - <username>
VPOP3 Antivirus Update Error - Error 11
VPOP3 Antivirus Update Error - Error 55
VPOP3 cannot access PostgreSQL - timeout expired
VPOP3 Deleting messages as 'old' messages
Error message: VPOP3 does not have write access to the registry - please check and restart VPOP3
VPOP3 Historical Logger Backlog
VPOP3 Is Responding Slowly
VPOP3 is using a lot of disk space
VPOP3 Not Starting Properly
VPOP3 re-downloading old messages from the ISP POP3 server
SMTP Relay Protection in VPOP3
Web Based Administration
VPOP3 Status Monitor Problems
Error Message - VPOP3 xxxx Server Access Not Allowed - See Your Administrator
VPOP3 Server Access Not Allowed
vpop3db_postgresql_service_not_starting
VPOP3DB Service doesn't exist
What is the best practice to delete old messages from the VPOP3 archive folder?
When sending mail, VPOP3 adds 'PRVS=...' to the sender address
Spamfilter Whitelist & Blacklist
How to write your own spam filter rules
Error message: Your connection has been blocked temporarily - Try again later
lan_forward_warning
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faq/which_versions_of_windows.txt
· Last modified:
2026/03/18 20:53
by
paul
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