sending.ac
Log in Sign up

Mailboxes keep disconnecting

Microsoft asks for a reconnect roughly every 90 days per mailbox. Across a few hundred mailboxes that becomes a steady drip, and each one stops sending until someone notices.

  • 213K mailboxes under management
Disconnected this week
ana@get-outreach.coReconnect required · Microsoft · Mon
Disconnected
tom@outreach-hq.coReconnect required · Microsoft · Tue
Disconnected
lea@try-outreach.coReconnect required · Microsoft · Wed
Disconnected
max@get-outreach.coReconnected by hand · 2 days without sends
Back

Every mailbox comes due for a reconnect

A sender stops until someone notices

A disconnected mailbox stops sending until it is reconnected. You find it in a weekly check, or when a sequence finishes short of the volume you planned.

The schedule belongs to the provider

Microsoft requires a reconnect roughly every 90 days. Mailboxes added in different weeks come due in different weeks, so across hundreds of them the reconnects keep arriving.

Someone's week goes to reconnecting

Each disconnect is a login, a consent screen and a check that sending resumed. An agency running hundreds of mailboxes absorbs these every month, out of hours meant for client work.

One reconnect wave, two different weeks

An example week

Reconnecting by hand

  1. ana@get-outreach.co comes due for a Microsoft reconnect and stops sending.

  2. Two more mailboxes drop. Sequences finish short.

  3. The weekly check finds three disconnects.

  4. Logins, consent screens, and checking that sends resumed.

sending.ac

  1. ana@get-outreach.co comes due and reconnects automatically.

  2. Two more reconnect on their own and sends hold.

  3. They are still connected to your sequencer.

  4. Nobody logged in to a consent screen.

Reconnects that happen on their own

Automatic reconnects are a baseline for mailbox infrastructure at this scale. sending.ac handles them and keeps volume steady around them.

Mailboxes reconnect automatically

When a mailbox comes due, sending.ac reconnects it and it stays connected to your sequencer. Nobody logs in to a consent screen, and the mailbox goes back to sending.

  • Native pairing with Instantly, Smartlead, EmailBison, PlusVibe
  • Your sequencer still runs the campaign
sending.acDefault workspace
SequencersDomainsPersonasInboxesDeliverability
Sequencer accounts
AllValidInvalid
Search accounts…
AccountStatus
Instantly
ana@get-outreach.coReconnected Mon 09:14
Valid
Instantly
tom@outreach-hq.coReconnected Tue 11:02
Valid
Instantly
lea@try-outreach.coReconnected Wed 08:47
Valid
Instantly
max@get-outreach.coInstantly · Azure
Valid

Volume holds while a mailbox is out

The infrastructure is replaceable, so a mailbox that cannot come back is swapped out and the domain keeps its sending volume. Each domain sits on its own tenant with its own admin panel.

  • Replaceable mailboxes, same domain volume
  • Own tenant and admin panel per domain
get-outreach.co · sends per day
Mon360
Tue360
Wed358
Thu360
Fri360
Two mailboxes reconnected automatically on Wednesday and sends held.

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 disconnects to nothing to chase

  1. Order mailboxes with their domains

    Mailboxes, domains and DNS in one order, live the same day.

  2. Reconnects happen on their own

    When Microsoft asks, the mailbox reconnects and stays connected to your sequencer.

  3. Volume holds

    A mailbox that cannot come back is swapped out, and the domain keeps its sending volume.

Questions about reconnects

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

Talk to an advisor
How often does Microsoft ask for a reconnect?

Roughly every 90 days per mailbox. Mailboxes added in different weeks come due in different weeks.

Do I have to log in to reconnect?

No. sending.ac reconnects the mailbox automatically and it goes back to sending.

Does the mailbox stay in my sequencer?

Yes. Mailboxes pair natively with Instantly, Smartlead, EmailBison and PlusVibe, and your sequencer still runs the campaign.

What if a mailbox cannot come back?

The infrastructure is replaceable, so it is swapped out and the domain keeps its sending volume.

What happens when a mailbox burns?

Risk Level flags it from sending data before the reply rate shows it. Mailbox insurance replaces it within 30 days at no extra cost, even if it was bought elsewhere. Insurance is free and in early access.

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.

Start sending today.

Mailboxes, domains and DNS in one order, live the same day. Bring the sequencer you already run.

Growth plan$199/mo
  • 350 Azure mailboxes included
  • Automatic reconnects on every mailbox
  • $0.55/mo for each mailbox after that
  • Around 1,500 outreach emails a day
  • Mailbox insurance, free in early access
  • Two months free when you pay yearly