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mailyoto

The 3 domains Mailyoto's email runs on

Every Mailyoto hostname that can show up in your DNS records or email headers, with what each one does.

Updated 23 October 2026

Mailyoto runs its email on mailyoto.com, yotosend.com and mailyoto.net. Every name below belongs to Mailyoto.

Names in your DNS records#

namewhat it does
mx1.mailyoto.com, mx2.mailyoto.comReceive email for your domain. Your 2 MX records point here.
spf.mailyoto.comLists Mailyoto’s sending servers. Your SPF record includes it.
yoto1.yotosend.com, yoto2.yotosend.comHold the DKIM keys for email you send. Your 2 DKIM CNAMEs point here.
smtp.mailyoto.comAccepts email you send from a mail app with an SMTP credential.

Names in email headers#

  • mail1.out.infra.mailyoto.com, mail2.out.infra.mailyoto.com and the rest of that numbered series, in Received lines: the servers that deliver forwarded and sent email.
  • yotosend.com, in ARC-Seal and in DKIM-Signature as d=yotosend.com: signs and seals forwarded email. See ARC and SRS.
  • bounces.yotosend.com, in the Return-Path of a forwarded email: collects bounces for a forward when your domain lacks the Mailyoto MX or SPF records.
  • reply.yotosend.com, in the Reply-To of a forwarded email, or in its From when the sender’s signature covers Reply-To: carries responses back through your alias, on domains with Reply from your alias on. See reply from your alias.
  • bounces.mailyoto.net, in the From of a bounce notice: sends “Message not delivered” notices, from no-reply@bounces.mailyoto.net.
  • mailyoto.com, in the From and DKIM-Signature of Mailyoto’s own emails: signs the emails Mailyoto sends you, such as sign-in links and notices about your domains.

Mailyoto no longer uses reply.mailyoto.com. It receives no email, and its records tell receiving servers to refuse email that claims to come from it.

namewhat it is
app.mailyoto.comThe dashboard.
api.mailyoto.comThe API.
mailyoto.comThis website.

When a name looks almost right#

A name that only resembles these, such as one with a changed letter or another ending, is not ours. Don’t open its links or enter your password there. Forward the email with its full headers to abuse@mailyoto.com.