Use your own domain
Free mailbox domains control their own authentication policies and may not authorise third-party SMTP services. Your own domain provides a stable identity you can configure and protect. Read more
Authentication
Authorise legitimate senders and align your domain with SPF, DKIM and DMARC.
Reverse DNS, PTR and HELO
Receiving systems expect the delivering server to present a stable hostname with coherent forward and reverse DNS. Missing or generic identity weakens trust. Read more
TLS for email transport
TLS protects SMTP traffic while it crosses a network, but it is transport encryption—not end-to-end encryption of the message stored in a mailbox. Read more
SPF and AuthSMTP
SPF tells receiving systems which services may send mail for a domain. Your record must cover AuthSMTP and every other legitimate source without creating a second SPF record. Read more
DKIM signing
DKIM adds a cryptographic signature that lets recipients verify the signing domain and detect changes to signed message content. Read more
DMARC
DMARC connects SPF and DKIM results to the domain recipients see in the From field, then publishes handling and reporting policy for failures. Read more
Dedicated IP addresses
A dedicated IP isolates reputation but also removes the protection of a well-managed shared pool. Low or irregular volume may not establish a useful reputation. Read more