We have a zero-tolerance policy for spam. Learn more about our strict anti-spam rules.
What is spam?
Spam is any email you send to someone who has not given you their direct permission or when you do not have other legal grounds to contact them on the topic of the email.
When you send an email to someone you do not know, that is an "unsolicited" email. Sending one unsolicited message to someone is obviously not spam. But when you send an unsolicited email to an entire list of people you do not know, that is spam.
What kind of email addresses are OK to send with MailerSend?
You need to have a valid lawful basis to send system notifications that are necessary for using your application or service (like password reminders, invoices, receipts, etc.). The permission can be obtained through:
An email newsletter subscribe form on your web site;
An opt-in checkbox on a form. This checkbox must not be checked by default, the person completing the form must willingly select the checkbox to indicate they want to hear from you; or
If someone completes an offline form like a survey or enters a competition, you can only contact them if it was explained to them that they would be contacted by email AND they ticked a box indicating they would like to be contacted.
What kind of email addresses are NOT OK to send to with MailerSend?
You cannot send to any email address which:
You do not have a valid lawful basis to contact in relation to the topic of the email you are sending;
You bought, loaned, rented or in any way acquired from a third party, no matter what they claim about quality or permission;
You have not contacted them via email in the last 2 years. Permission does not age well and these people have either changed their email address or will not remember giving their permission in the first place; or
You scraped or copy and pasted from the web. Just because people publish their email address does not mean they want to hear from you.
We reserve the right to suspend your account immediately and start investigating your activity if:
Your bounce rate is 10% or higher of all emails sent;
Your emails have a high percentage of spam complaints (more than 2 in 1,000 emails (0.2%)).
If it turns out that you were sending emails without having a valid legal ground - we will terminate your account. We can ask you to prove that you have a legal ground and we can close your account if you do not have such proof. Otherwise, we will re-activate your account and you will be able to use the service again.
If you spam using your MailerSend account, you can be sure to expect the following:
Your account will be terminated immediately;
No refund will be made.