Support, sales & billing
Contact Mailrelay
Need help with your email marketing, your account or your plan? Our customer support, sales and billing teams are here for you. Tell us what you need and we’ll put you in touch with the right person.
Send us a message
Choose a department and we will reply by email.
Phone numbers
Call Mailrelay customer service and a member of our team will answer.
+34 91 123 76 45 Spain
+1 586 804 7812 USA
Support hours
Monday to Friday, 7:00-22:00
Spain time
Help center
Find answers in the Mailrelay help center
Browse step-by-step email marketing guides, the API reference and answers to frequently asked questions, any time you need them.
Knowledge base
Step-by-step guides for every Mailrelay feature, from importing contacts to authenticating your sending domain.
Onboarding guide
New to Mailrelay? Set up your free account, your sender domain and your first email campaign.
API docs
Endpoints, authentication and code examples to integrate Mailrelay with your own app through the API.