Anti-spam Requirements

Updated: January 3, 2017

As an email service provider (ESP), we are required to enforce spam laws. Spam negatively impacts deliverability rates, and we want to make sure your emails reach their recipients. We have some very strict rules that must be adhered to in all countries, but you may find that your country has additional requirements.

Requirements for users accounts


  • You must agree to our Terms of Use.
  • You must tell us and prove where you got your list should you be asked.
  • An unsubscribe link must be in all campaigns.
  • You must include your contact information inside every promotional campaign that you send, including a physical mailing address or PO Box where you can receive mail. (Not a website or email address.)
  • You may not falsify your contact information or subject line.
  • If you regularly use an integrated service or e-commerce platform, you need to abide by their terms of use, as well.
  • Even if you are outside the US, our servers live in the US. We have to make sure all US standards are observed.
  • We require that your emails comply with the US CAN-SPAM Act. If you break the rules, you could be liable for hundreds of dollars for each recipient that you sent non-compliant messages to.
  • In addition to CAN-SPAM rules, you must comply with the anti-spam laws of the countries your recipients live in. So if you're sending to UK residents and US residents, check the UK spam laws to make sure you're also UK compliant.

International Requirements By Country


These are either links to anti-spam legislation in countries outside the US or the name of the country's anti-spam law.





  • Canada’s Anti-Spam Legislation (CASL) amends the Canadian Radio-television and Telecommunications Commission Act, the Competition Act, the Personal Information Protection and Electronic Documents Act and the Telecommunications Act. It is very similar to CAN-SPAM but has some minor differences and covers all electronic messages, not just email.



Czech Republic




  • Falls under the Commission Nationale de l'Informatique et des Libertés (CNIL) [National Data Processing and Liberties Commission], Electronic Mailing and Data Protection (Oct. 14, 1999) (French) CNIL Guidelines on email marketing.




  • Italy's anti-spam laws are very strict. You can even be imprisoned for sending spam. If you're sending to Italian recipients, follow these guidelines as well.
  • Personal Data Protection Code (legislative decree no. 196/2003)
  • The Code transposed EC Directive 95/46 on the protection of personal data and EC Directive 2002/58 on privacy in electronic communications; it consolidated all Italian pre-existing laws and regulations in this sector.
  • DL 196/2003 Personal Data Protection Code • DL 675/1996 on privacy protection states, inter alia, that a company must have authorization from each user whose personal data (such as e-mail) they want to use. • DL 171/1998 (deriving from the European Community directive 97/66/CE) on telecommunications privacy protection: this put outlaws all automatic systems to call a user and says that all the expenses of an advertising must be paid by the company and not the user (faxes and e-mails are instead paid also by the user).
  • DL 185/1999 (deriving from the European Community directive 97/7/CE) on customer protection with respect to long-distance contracts: this obliges companies to seek the permission of the user for virtual or telephone sales.


New Zealand

South Africa


  • Swedish Marketing Act (Swedish Code of Statutes, SFS 1995:450).
  • Personal Data Act (Swedish Code of Statutes, SFS 1998:204), in so far as spam activities involve processing of personal data.


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