Email deliverability

Authoritative signalling

SPF aligns to the IPs your account actually relays through; DKIM rotates per provider tooling. Operational primer: KB SPF/DKIM/DMARC.

Outbound SMTP after migration

• Rebuild mailboxes post-DNS flip; suppress credential reuse from insecure exports.
• Warm IPs gradually if sending large marketing blasts outside inbox providers’ recommended limits.
• Cross-check DKIM selectors when enabling third-party relays (marketing ESPs).

Support expectations

Guarantee inbox placement for arbitrary third-party MTAs worldwide is not asserted — we assist with SMTP auth, blacklist triage pointers, header captures for remote diagnosis.