Posts tagged IMAP
SSL certs for POP3, IMAP and SMTP on Plesk
Jun 3rd
Where do they live:
POP3 and IMAP (Courier-IMAP)
/usr/share/courier-imap/pop3d.pem
and
/usr/share/courier-imap/imapd.pem
SMTP (Qmail)
/var/qmail/control/servercert.pem
If you do make any changes to these certificates then make sure you restart the respective service:
For POP3 and IMAP
service courier-imap restart
SMTP
service qmail restart
You may have exceeded the maximum number of connections to this server. (Linux)
Mar 29th
By default, Linux based servers running Plesk and the Courier-IMAP drastically limit the number of inbound connections to prevent users from opening up too many concurrent sessions. Unfortunately, this artificially-low restriction can impact legitimate users who have multiple computers connecting to the Courier-IMAP server from behind a firewall or a single computer that runs an IMAP client that takes advantage of mailbox caching.
Your folder could not be created: the IMAP server refused to create it
Mar 26th
This error usually appears when trying to add a new IMAP folder, at the top level (Outside of the INBOX), and has to do with the way IMAP folder structures work. In IMAP, all folders are really subfolders of the INBOX. To to make a new folders appear at the same level as the INBOX you can make a client side change.
Common Port Numbers
Dec 31st
What is a Port
In computer networking, the protocols of the Transport Layer of the Internet Protocol Suite, most notably the Transmission Control Protocol (“TCP“) and the User Datagram Protocol (“UDP“), but also other protocols, use a numerical identifier for the data structures of the endpoints for host-to-host communications. Such an endpoint is known as a port and the identifier is the port number. The Internet Assigned Numbers Authority (IANA) is responsible for maintaining the official assignments of port numbers for specific uses
Port List
PCI Compliance for Plesk (linux)
Dec 23rd
PCI Scanning stands for “Payment Card Industry” scanning. It involves having a PCI ASV (Approved Scanning Vendor) scan any and all IP addresses that the public has access to, related to your website or your site’s transaction process.
The following guide assumes you are working with a Plesk 8.6 (or above) installation on RedHat Enterprise or CentOS Linux. You will need shell / root access to your server running Plesk, if you do not have shell / root access then you will need to ask your server hosts to make the changes.
WARNING:This document does not serve as a comprehensive source for PCI compliance advice. The reader is expected to have some basic systems administration experience. Do not copy and paste examples directly from this document without first understanding their implications.
