sending.ac
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Replies dropped and I can't see why

The reply rate fell, every dashboard still says fine, and finding out why has become a second job on top of running the campaigns.

  • 213K mailboxes under management
Sending domains
get-outreach.coReply rate 1.1% · was 3.2% last month
Sending
outreach-hq.coReply rate 0.9% · was 2.8% last month
Sending
try-outreach.coReply rate 1.4% · was 3.0% last month
Sending
outreach-team.ioReply rate 1.0% · was 2.9% last month
Sending

The reply rate is the last number to move

Every fix is a guess

You rotate domains, rewrite the copy, pause a sequence. Replies stay flat, and you still cannot say which change mattered, or whether any of them did.

Several factors move at once

Authentication drift, a blocklist listing, placement shifting at one provider, a warm-up pool that sends where your leads are not. Each can contribute, and they rarely show up in one place.

Weeks of sends before you see it

Reputation can slip in week one and placement can shift by week three. By the time replies drop, whatever started it is weeks old and the campaign has kept sending on it.

One listed domain, two different weeks

An example week

Read off the dashboards

  1. try-outreach.co is listed on a blocklist. Every dashboard says fine.

  2. Replies dip across the campaign.

  3. You rewrite the copy without knowing why.

  4. Still guessing, and still sending on the listed domain.

sending.ac

  1. The blocklist check fails on try-outreach.co.

  2. You get what broke, why and what to do: pause its sends and request delisting.

  3. A 15-minute call with your advisor shows which check moved first.

  4. You know which change mattered.

What sending.ac shows you, domain by domain

Seven checks on every domain, every day

SPF, DKIM, DMARC, blocklist, placement, MX and rDNS are checked on each domain daily and kept 28 days deep. A failing check comes with what broke, why it can matter and what to do.

  • Filter down to the last sixty minutes
  • Per domain and per sender
  • Reply rate that counts real replies only
sending.acDefault workspace
SequencersDomainsPersonasInboxesDeliverability
Deliverability
Inbox trafficBouncesDomain checks
try-outreach.co
Domain checksKept 28 days
Check9/289/299/3010/110/210/310/410/510/610/7
Authentication
DKIM
DMARC
SPF
Infrastructure
Outbound IP
Placement
Microsoft placement
Blacklists
Spamhaus DBL
SURBL

What broke: try-outreach.co is listed on a blocklist, and placement at Microsoft has slipped.

Do: Pause the domain and request delisting, then move its mailboxes to backup.

An advisor reads it with you

A deliverability advisor is assigned to your account. On a 15-minute call they go through the domains where replies dropped and show you which check moved first.

  • Assigned to your account
  • Fifteen minutes, on your own data
Your advisor call
  1. Pick the domainsThe ones where replies dropped
  2. Read the 28 daysChecks, placement and real replies, side by side
  3. Agree the next stepPause, fix the record or replace, domain by domain

Teams running outbound on sending.ac

213Kmailboxes under management
7checks per domain, every day
30 daysto replace a burned mailbox
75mailboxes on a single domain
David LehnertFounder, Wyngman
LinkedIn
Can confirm. We actually tested them, and performed next to Winnr the best. Good on Yannic Schwock
Saief TissaouiPosted in General discussions
Community
Setup was fast, DNS and DKIM handled automatically, and each domain runs on its own isolated tenant so a burned domain stays contained.
SP
Sergio PereaInbox buyer
Message
Btw, you guys have the smoothest UX/UI of all the inbox resellers I’ve purchased from. And I’ve worked with ALL of them.

From a dropped number to a next step

  1. Pick the domains

    Start with the ones where replies dropped.

  2. Read the 28 days

    Checks, placement and real replies side by side, per domain and per sender.

  3. Agree the next step

    Pause, fix the record or replace, domain by domain, with your advisor if you want a second read.

Questions about seeing what changed

Most of these are faster on a 15-minute call with someone who already knows the answer.

Talk to an advisor
What gets checked on each domain?

SPF, DKIM, DMARC, blocklist, placement, MX and rDNS, every day, kept 28 days deep.

How recent is the data?

You can filter down to the last sixty minutes, per domain or per sender.

Does the reply rate include warm-up replies?

No. Warm-up replies and out-of-office messages are counted separately, so the reply rate counts real replies only.

What happens when a check fails?

It comes with what broke, why it can matter and what to do.

Who reads the data with me?

A deliverability advisor is assigned to your account. On a 15-minute call they go through the domains where replies dropped.

Can I bring the mailboxes I already have?

Yes. Mailboxes bought anywhere else connect for free. You only pay for what you provision through sending.ac.

Find out which check moved first

Book 15 minutes with a deliverability advisor and bring the domains where replies dropped.

Checked on every domain7 a day
  • SPF, DKIM and DMARC
  • Blocklist and placement
  • MX and rDNS
  • 28 days of history
  • Down to the last sixty minutes
  • What broke, why and what to do