. The Services for which you have registered may, at your option, include e-mail forwarding. To the extent you opt to use e-mail forwarding, you are obliged to do so in accordance with all applicable legislation and are responsible for all use of e-mail forwarding, including the content of messages sent through e-mail forwarding. You undertake to familiarize yourself with the content of and to comply with the generally accepted rules for Internet and e-mail usage. Without prejudice to the foregoing, you undertake not to use e-mail forwarding: (A) to encourage, allow or participate in any form of illegal or unsuitable activity, including but not restricted to the exchange of threatening, obscene or offensive messages, spreading computer viruses, breach of copyright and/or proprietary rights or publishing defamatory material; (B) to gain illegal access to systems or networks by unauthorized access to or use of the data in systems or networks, including all attempts at guessing passwords, checking or testing the vulnerability of a system or network or breaching the security or access control without the sufficient approval of the owner of the system or network; (C) to interrupt data traffic to other users, servers or networks, including, but not restricted to, mail bombing, flooding, Denial of Service (DoS) attacks, wilful attempts to overload another system or other forms of harassment; or (D) for spamming, which includes, but is not restricted to, the mass mailing of unsolicited e-mail, junk mail, the use of distribution lists (mailing lists) which include persons who have not specifically given their consent to be placed on such distribution list. Users are not permitted to provide false names or in any other way to pose as somebody else when using e-mail forwarding.