Why did I get an email asking for DNS records?

Some of your sending domains have their DNS somewhere SendTo can't write to, so the email lists the records to add there: a bounce address for each domain, and a DMARC record. Add them where the domain's DNS is managed. Sending carries on while you do.

Question3 stepsUpdated 14 Nov 2026

Most sending domains have their DNS with SendTo, and SendTo writes their records itself. The email DNS records to add is for the ones whose DNS is somewhere else: your own DNS host, or your customer's. It lists what to add there.

What's in it

One email covers every domain that needs records, yours and your customers', grouped by customer. Yours are under Your own domains. Each domain has its records, each with its Type, Priority, Name and Value:

Note beside itWhat it is
Bounce addressAn MX record and a TXT (SPF) record, one pair for each region the domain sends from. The domain gets its own bounce address, so receivers check SPF against the domain itself.
DMARC: new recordThe domain has no DMARC record. Add this one.
DMARC: replace the existing record with thisYour own policy, kept, with SendTo's report address added.
DMARC: keep only this one recordThe domain has two DMARC records, and two cancel each other. Keep this one.

The DMARC record sends its reports to SendTo, so we can watch how each domain's mail is treated.

Add them

  1. Open the place where the domain's DNS is managed.

  2. Add each record as the email shows it.

  3. Some DNS hosts want only the part of the Name before the domain: bounce-use1 rather than bounce-use1.example.com.

SendTo checks every day and switches each one on as soon as it appears. Nothing stops sending in the meantime.

Your customers' copies

A customer whose domains have their own DNS got an email of their own, in your brand: from your sender name and address, with your logo, your colour and your portal's link, and nothing of SendTo. It lists their domains, and says you check every day.

A customer gets no copy until your brand is ready. Their domains are in your email instead.