BestPrac.Org

Stop Spam : Best Practice in Email
Spam Prevention and Eradication


Principles of Best Practice -
Free Web Email Account Services:

Summary:

Free Email Account Services, most particularly web-based free email accounts, are widely used and abused by spammers. The relative anonymity they provide, along with ease of opening multiple accounts and providing spam reply "drop-box" opportunities makes it essential that operators of all Free Email Account Services take every possible precaution and diligently enforce policies and terms of services to deter and frustrate the efforts of spammers.

Ref # Principle or Proposed Principle
FWE001  Free Email Account Services should ensure that users have readily and easily available optional access to the full email headers of emails received.
FWE002  Free Email Account Services should not knowingly distribute unsolicited emails, or emails reasonably suspected of being unsolicited, to their users, and should institute multiple forms of filters. Such filters should eradicate spam, not merely deliver it to a separate folder. Filters should as a minimum be a combination of "known phrase" (or similar), Open Relay Filters, and Known Rogue IP filters.
FWE003  Free Email Account Services should maintain an adequately and competently staffed abuse desk on a 24 hour, 365 day per year basis. The contact details for the abuse desk should be readily and easily accessible on the website of the Free Web Email Service, and also listed with the Network Abuse Clearinghouse at http://abuse.net
FWE004  Free Email Account Services should ensure that their Terms of Service include a strong antispam clause, including but not limited to prohibiting:
  • Sending unsolicited bulk/commercial email
  • Receiving replies from unsolicited bulk/commercial emails sent from any other service provider
with violation resulting in immediate account termination without further warning, barring the user from future access, and passing on all information regarding breaches of their Terms of Service to any other service provider known or believed to be used by the offender.
FWE005  Upon receipt of an evidence-based abuse report, the abuse desk of the Free Email Account Service should investigate the complaint and take action within two (2) hours. If the complaint is valid, the account should be terminated immediately, the offender barred from future use of the service, and the violation and termination reported to the other service providers known or believed to be used by the offender. If the complaint cannot be properly investigated within two (2) hours, the account should be temporarily suspended while the investigation continues. All complainants should be sent a reply stating the outcome of the investigation and the action taken.
FWE006  All Free Email Account Services should mandatorily provide BCC: as a sending option in addition to the usual TO: and CC: sending alternatives. Where a user attempts to send an email to multiple recipients via either the TO: or the CC: alternatives, a pop-up help screen should automatically appear, giving the user a suggestion of sending via BCC instead "as a security measure" - and asking if they wish to continue or change the addresses to BCC.
FWE007  Free Email Account Services should place a strict limit on the number of recipients to whom any single email being sent from their service may be sent. (For the sake of example and recommendation only - Max. 20 recipients.)
FWE008  Free Email Account Services should place a cap on the volume of outgoing mail which may be sent from any one account in any given time period. (For the sake of example and recommendation only - 20 in any one hour period and 100 in any 24 hour period.)
FWE009  Free Email Account Services should prevent the use of their accounts being used as "drop boxes" for spam replies by placing a strict limit on the number of emails any one account may receive in any given time period. (For the sake of example and recommendation only - Maximum of 10 in any one hour period.) Accounts breaching the set threshold should be automatically suspended pending investigation. Investigation should be completed within two (2) hours of the triggering of the automatic suspension. If the breach is innocent, the suspension should be removed. If evidence of "drop box" activity is clear, the account should be terminated and evidence of IP and other identifying data of any person trying to access the account recorded and abuse reports lodged to the offender's ISP.
FWE010  Free Email Account Services should ensure that each email sent through their service has the Originating IP (and it's resolved name) of the account user, and the time-stamp, embedded in a footer, to aid recipients in identifying the sender and to deter abuse.
FWE011  Free Email Account Services should not allow themselves to be used as defacto anonymous services, and should protect themselves from being so used by only permitting account access where the user's originating IP is unmistakeable. Technologies to recognise when Account Holders are using non-transparent proxies, and to block account access accordingly, should be implemented.
FWE012  In the event that a free email account service has been fraudulently associated with a spam (via mention of non-existent account as a return-path, for example), the free email service provider should take all available measures to identify the perpetrator and pursue all possible legal remedies. Where the domain itself does not host the service but an outsourced service provides the email service on behalf of the domain, it should be encumbent upon the outsource provider to vigorously pursue all legal avenues to defend the reputation of it's client.
FWE013  Free Email Account Services, in their Privacy Statements, should reserve the right to pass on all information regarding breaches of their Terms of Service to any other service provider known or believed to be used by the offender.
FWE014  Free Email Account Services should enable technology to prevent automated account registrations, ensuring that accounts opened can only possibly be humanly applied for or operated.
FWE015  Free Email Account Services should, in their Terms Of Service, prohibit the use of their accounts for the purpose of providing contact details for domain registrations.
FWE016  Free Email Account Services should implement technologies that allow only for manual human sign-up for accounts and services, prohibiting and preventing robotic sign-ups.