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Anonymous
If your mailer has been an open relay for some time, and particularly if it has been used by spammers, it may well be on one or more blocklist. The blocklist are a very important co-operative activity of the anti-spam community. Certain organisations or individuals maintain lists of IP addresses or address ranges and make them available in ways which enable users of the lists to reject attempted mail transfers from those addresses. Once your mailer is working properly you should check with all the lists you know and request removal if necessary.
Anonymous
Janet(UK) recommends that you configure your Janet access router to block connections from Janet (and the rest of the Internet) to TCP port 25 (SMTP) of almost all IP addresses in your network. The addresses of a small number of mailers which are carefully managed and are not a relaying risk can then be released from the block; for a small organisation this may be a single IP address.
Anonymous
Much of the required behaviour can be achieved by configuring your mail software. The details vary considerably between products and you should consult the product documentation or present your requirements very carefully to any contractors managing your mailers. It is unfortunate that in many cases the default behaviour (the way the software works as delivered or following a standard installation, upgrade or patch) is to openly relay, so you should check after making any changes.
Anonymous
JANET Aurora is a dark-fibre network to support research on photonics and optical systems.
Anonymous
Jisc Certificate Service Managing your SSL, email and other certificates all in one place   Our certificate service helps education, public sector and not-for-profit organisations keep web and email services secure, so confidential data can be sent safely via the internet.
Legislation and network regulation Cybercrime consultations Data protection Intellectual property Internet intermediaries - networks and websites Other consultations
Terms and Conditions INTRODUCTION 1.    Janet agrees to provide to the Customer, and the Customer agrees to pay for, certain Janet Services subject to these Terms. DEFINITIONS 2.   "Commencement Date" is the date when the Customer sets up ISDN invoicing accounts and which is recorded in the Janet Videoconferencing Services Booking Service.
Guests can join the videoconference by phone without needing access to videoconference facilities themselves, and without needing to be registered as users of the service. In booking the videoconference, the administrator simply selects a new guest type: “telephone (audio only)”, and enters the name and email address of the telephone participant. The telephone guest is then emailed a number to call into the videoconference.
The conference administrator can also add and remove participants while the conference is in progress, and if it is being recorded then the recording can be stopped while the conference continues: useful if, for example, the recording was to cover a performance, presentation or discussion of a specific topic and the topic has now moved on.
Software requirements: A modern web browser Quicktime 6.5 and above Windows Media Player (requires IE and Windows 2000, XP, Vista or 7) Java (standard edition) How to Use Live Videoconference Streaming The Streaming feature may be selected when a videoconference is being booked from the Confirm booking page (Step 3 of 3). The conference Booker should click Set conference options and tick the Videoconference streaming tick box.