Build MX records for any mail provider. Lower priority = preferred. Presets for Google, Microsoft 365, Zoho, Fastmail, and Proton.
; BIND zone file format
example.com. 3600 IN MX 1 ASPMX.L.GOOGLE.COM.
example.com. 3600 IN MX 5 ALT1.ASPMX.L.GOOGLE.COM.
example.com. 3600 IN MX 5 ALT2.ASPMX.L.GOOGLE.COM.
example.com. 3600 IN MX 10 ALT3.ASPMX.L.GOOGLE.COM.
example.com. 3600 IN MX 10 ALT4.ASPMX.L.GOOGLE.COM.
; Cloudflare / Route 53 / generic DNS panel:
Name: example.com Type: MX Priority: 1 Value: ASPMX.L.GOOGLE.COM. TTL: 3600
Name: example.com Type: MX Priority: 5 Value: ALT1.ASPMX.L.GOOGLE.COM. TTL: 3600
Name: example.com Type: MX Priority: 5 Value: ALT2.ASPMX.L.GOOGLE.COM. TTL: 3600
Name: example.com Type: MX Priority: 10 Value: ALT3.ASPMX.L.GOOGLE.COM. TTL: 3600
Name: example.com Type: MX Priority: 10 Value: ALT4.ASPMX.L.GOOGLE.COM. TTL: 3600