Internet

Internet

Internet is a global system of interconnected computer networks.

Industry: Online services

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Open rate

Software; Email

The number of HTML message recipients who opened your email, usually as a percentage of the total number of emails sent. The open rate is considered a key metric for judging an email campaign's ...

Open relay

Software; Email

An SMTP email server that allows outsiders to relay email messages that are neither for nor from local users. Often exploited by spammers and hackers.

Opt-in

Software; Email

A specific, pro-active, request by an individual email recipient to have their own email address placed on a specific mailing list. Many list renters and buyers now require list owners to provide ...

Opt-out

Software; Email

A specific request to remove an email address from a specific list, or from all lists operated by a single owner. Also, the process of adding an email addresses to lists without the name's ...

An email recipient who got your message via forwarding from a subscriber. (Some emails offer "forward to a friend" in the creative, but the vast majority of pass-alongs happen using email clients, ...

Whitelist

Software; Email

Advance-authorized list of email addresses, held by an ISP, subscriber or other email service provider, which allows email messages to be delivered regardless of spam filters. See also enhanced white ...

Firewall

Software; Email

A programme or set of programmes designed to keep unauthorised users or messages from accessing a private network. The firewall usually has rules or protocols that authorise or prohibit outside users ...