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Glossary

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Bandwidth

The amount of data allowed to transfer between your site on our server, and the Internet.

Many web hosting companies will offer unlimited bandwidth, which will obviously appear a very attractive offer. However, you should check these out carefully, as unlimited bandwidth could quite easily mean ‘use what you want, but only the first 10GB is free.’ Most hosting companies offer unlimited bandwidth knowing that a small business might only use 1GB a month, and then hit clients with additional hidden costs later.

Disk Quota

The amount of hard drive storage space allotted to your hosting plan on our server.

It's good to keep in mind that exceeding this amount will result in bounced email messages and other site issues.  Please open a support ticket if you have further questions or need to upgrade to a new hosting plan.

Email Blacklist

A published list of servers or IP addresses determined to be the source of SPAM.

Blacklists of mail servers can be either public or private. Public blacklists can be subscribed to by other mail servers to first check if they're receiving an email from a server's IP address that might have possibly been flagged for sending SPAM in the past.  Private blacklists are maintained by email service providers (ESP) to serve the same purpose.

A server can be listed on one or multiple blacklists, public or private.  Getting unlisted from these lists can be a time consuming process, which can affect deliverability of email for all users of a server.

IMAP

Internet Message Access Protocol

The Internet Message Access Protocol (commonly known as IMAP) is an Application Layer Internet protocol that allows an e-mail client to access e-mail on a remote mail server.

On eThree Media's server, clients may choose either IMAP or POP3 as their method for receiving email.  In either case, the default ports are used.  All IMAP connections must use encryption (SSL) on port 993.

IP Address

Internet Protocol Address

A unique string of numbers separated by periods that identifies each computer using the Internet Protocol to communicate over a network.

The Internet Protocol (IP) is the principal communications protocol in the Internet protocol suite for relaying data across network boundaries. Its routing function enables internetworking, and essentially establishes the Internet.

Mail Client

Locally installed software used to read and send email on your device.

Also known as a Mail User Agent (MUA), eThree Media supports all email clients conforming to RFC 5322.  A short (but incomplete) list includes:  Microsoft Outlook, Apple Mail, Thunderbird, Eudora, etc.

POP3

Post Office Protocol (version 3)

In computing, the Post Office Protocol (POP) is an application-layer Internet standard protocol used by local e-mail clients to retrieve e-mail from a remote server over a TCP/IP connection. POP has been developed through several versions, with version 3 (POP3) being the current standard.

On eThree Media's server, clients may choose either IMAP or POP3 as their method for receiving email.  In either case, the default ports are used. All POP3 connections must be encrypted (SSL) and utilize port 995.

SMTP

Simple Mail Transfer Protocol

Simple Mail Transfer Protocol (SMTP) is an Internet standard for electronic mail (e-mail) transmission. 

All SMTP connections must be secured by SSL, known as SMTPS, and utilize the default port 465.

While electronic mail servers and other mail transfer agents use SMTP to send and receive mail messages, user-level client mail applications typically use SMTP only for sending messages to a mail server for relaying. For receiving messages, client applications usually use either POP3 or the IMAP (as is the case on eThree Media's server).

SPAM

Irrelevant or inappropriate messages sent on the Internet to a large number of recipients.

Spamming remains economically viable because advertisers have no operating costs beyond the management of their mailing lists, and it is difficult to hold senders accountable for their mass mailings. Because the barrier to entry is so low, spammers are numerous, and the volume of unsolicited mail has become very high.

SSL

Secure Sockets Layer

A standard security technology for establishing an encrypted link between a server and a client—typically a web server (website) and a browser; or a mail server and a mail client (e.g., Outlook or Apple Mail).