VPOP3 Troubleshooting

VPOP3's AutoUpdate process failed with error code 258.

Error 258 is a Windows 'Timeout' error. VPOP3 waits 30 minutes for the updater to complete its checks. It is very unlikely to take this long to check for and install any updates, so the usual reason for this problem is some security software blocking the updater from working. Because the updater silently downloads files from the Internet and installs them, it is possible that security software will see this as suspicious behaviour. In this case, you can either disable the automatic updates (Set...

Reset Webmail/Admin Access Restrictions

**VPOP3 Version 6.6 or later** VPOP3 v6.6 and later come with a utility which will check the settings and offer to reset them to the defaults for you. * Go to a command prompt in the VPOP3 directory (eg Start → Run → cmd (enter), then type cd \vpop3) * Run vpop3settings resetperms and follow the prompts For earlier versions of VPOP3, see below. **VPOP3 Version 5 to 6.5** **Reset Webmail Access Restrictions** You can follow the steps below to clear the Webmail access rest...

Problems accessing VPOP3 settings

If you have problems accessing the VPOP3 settings: * Go to Start → Programs → VPOP3 → Configure VPOP3 on the VPOP3 computer. That should open up a web browser and take you to the login page * If VPOP3 doesn't show the login page, and shows a '403' error page instead, that means that the access restrictions for the WebMail service have been restricted so that this computer cannot access the WebMail service. * Log in using your VPOP3 administrator login details. If you have forgotten thes...

Data stream contained NUL character

**Description of the problem** NUL characters (bytes with value 0) are not allowed in email messages and should not be transmitted over POP3, SMTP or IMAP4 except in certain circumstances. If an attachment contains such a byte it must be encoded using _Base64_ or _Quoted-Printable_ encoding so that the transmitted data doesn't contain a NUL character. In some cases, messages will arrive at VPOP3 which do contain such characters. This is usually due to a bug in the upstream mail server which h...

Lost administrator password

The administrator password is the same password as used for collecting email by a user who is set up as an administrator in VPOP3. It is not a separate password, so if the administrator can remember his or her email password that is the same as the administrator password. The details are case sensitive, so ensure that you are entering capital and lower case letters as appropriate. If someone else installed the VPOP3 software for you and did not tell you the password, then you should contact th...

Quarantine Report has invalid links

When VPOP3 generates the daily spam filter Quarantine report, it puts links in to allow easy viewing/release of the quarantined messages. In some situations, these links may not work - for instance, if you are accessing your VPOP3 from across the Internet, or if you have changed the IP address of the VPOP3 computer. VPOP3 gets the 'host' part of the link from the setting in Settings -> Spamfilter -> General -> Quarantine Settings (https://www.pscs.co.uk/manual/spamfilter_general_quara...

Licence activation not working

When VPOP3 is started it will validate the licence key online to make sure that your licence allows you to run the installed version of VPOP3 (this is to avoid us needing to issue new licence keys every few months (and you needing to keep track of them)). In the majority of cases this will work automatically without any intervention from you. However, in some cases, people may have tightened security on their Internet connections so much that VPOP3 cannot connect to the licence activation serve...

VPOP3 Spamfilter False Positives

As with any spam filter solution, the VPOP3 spam filter can, and probably will, generate false positives. These are messages which VPOP3's spam filter thinks are spam, but which actually aren't. On the mail we receive at PSCS, the false positive rate is around 2 or 3 in every 5000 detected spam messages. That's about a 0.04% - 0.06% rate. However, different users may have different false positive detection rates. For instance: * you may receive mail which looks like some types of spam me...

Duplicated Messages

If you get duplicate messages, then there are several common reasons for this: **Multiple POP3 mailboxes on the ISP** If your ISP gives you one POP3 mailbox for each VPOP3 user, then you have to tell VPOP3 which user each mailbox is associated with. If you don't do this, then when a message is sent to two VPOP3 users, each user will receive two copies of that message. To link each ISP mailbox with a VPOP3 user, go to the VPOP3 Mail Connectors → Mail Collectors page. Then, for each Mail Col...