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Category Archives: VPOP3

Duplicate messages in Outlook 2016 when using POP3

There was an update to Outlook 2016 in February 2016 which appears to have caused a problem where it will repeatedly download messages from the POP3 mailserver. This is NOT a problem with VPOP3, and there is nothing that VPOP3 can do about the problem. See this link for more information: http://www.howto-outlook.com/news/outlook-2016-pop3-duplicates-february-2016.htm In summary, some […]


What to do about .DOC / .XLS malware emails

There are currently large amounts of ‘spam’ emails being sent containing .DOC and .XLS files. These files are sometimes almost benign just containing a spam message, but often contain macros which can do malicious things, such as downloading viruses from the Internet when the files are opened. These files seem to be very difficult for virus scanners […]


Advanced Autoresponders in VPOP3

Autoresponders (or ‘Out of office replies’) are supported by VPOP3. This article explains some of the advanced features of VPOP3’s autoresponders. Autoresponders can be set by administrators by editing the user in the settings, and going to the Autoresponder tab, or by the user themselves by logging into their VPOP3 Webmail account and going to Tools -> Autoresponder. […]


Background log writer

The diagnostic log files which VPOP3 generates can add a lot of extra disk load to a VPOP3 server. For this reason, VPOP3 doesn’t usually write data to the log files as soon as the event happens. The log file entries are held in memory until the “background log file writer” gets around to it, […]


Free Webinars / online training

We are planning on holding some Webinars /online training events for VPOP3 users and partners. These will be free, but availability is limited. The initial planned dates are: Friday 29th August 3.00pm – 4.00pm – beginners (registration) Friday 12th September 3.00pm – 4.00pm – advanced usage (registration) Friday 19th September 3.00pm – 4.00pm – beginners (The above times are […]


Running VPOP3 on Wine

No, this isn’t about how to run a mail server when you’re a bit inebriated. For those who don’t know, Wine is a Windows ’emulator’ for Linux (actually Wine Is Not an Emulator, but by calling it an emulator it makes it a bit easier for people to understand). The main ‘problem’ with Wine, is […]


Advanced Backups for VPOP3

As everyone knows, backups are very important, especially with an important piece of software such as a mail server. With VPOP3 v5 and later, VPOP3 will automatically make a backup of its database every day. The database in v5 and later contains all the settings, users, messages, etc, so is essentially a full backup and […]


VPOP3 v6.3 – GeoIP access restrictions

One of the new features in VPOP3 v6.3 was the support for ‘GeoIP’ in the Access Restrictions settings. This lets you specify that only IP addresses from certain countries can access VPOP3 services. Many people use this type of restriction to prevent access from countries commonly used by attackers. In fact, the VPOP3 GeoIP facility […]


PostgreSQL replication and Bucardo

PostgreSQL streaming replication in PostgreSQL 9.0 and later is excellent if it is suitable, and it is relatively easy to set up, with several walkthroughs on the Internet. The main limitation of the streaming replication is that all the servers which are replicating have to be pretty much identical. They have to be: Same major version […]