In Winnr go to Email Users → Export, choose Instantly, click Export, then Download CSV. In Instantly, add new email accounts, pick the option for any SMTP/IMAP provider and use its bulk CSV import to upload the file. The file sets Daily Limit to 15 and Warmup Enabled to FALSE, so a mailbox Winnr warms is not warmed twice.
Instantly is a cold-email sequencer with campaigns, a unified inbox and its own warmup. Winnr provisions and warms the mailboxes; Instantly runs the campaigns.
What's in the Instantly file
| Column | What Winnr puts in it |
|---|---|
| The full email address | |
| First Name | First word of the display name |
| Last Name | Rest of the display name (empty for a one-word name) |
| IMAP Username | The full email address |
| IMAP Password | The mailbox password |
| IMAP Host | That mailbox's mail server |
| IMAP Port | 993 (SSL) |
| SMTP Username | The full email address |
| SMTP Password | The mailbox password (same as IMAP) |
| SMTP Host | That mailbox's mail server |
| SMTP Port | 465 (SSL) |
| Daily Limit | 15, or the mailbox's Winnr daily send limit if lower |
| Warmup Enabled | FALSE |
| Warmup Limit | 35 |
| Warmup Increment | 1 |
Check before you upload
- Sender names. Instantly builds the From name from First Name and Last Name, which Winnr splits from the display name at the first space. A display name like "Sales Team" becomes First Name "Sales", Last Name "Team". Fix the display name in Winnr, or edit the two columns, if that matters for your campaign.
- Warmup Enabled. Leave it FALSE when Winnr warms the mailbox. Flip it to TRUE only if Instantly is your warmup.
- Hosts per row. Mailboxes on different domains can sit on different mail servers, so keep each row's own IMAP Host and SMTP Host.
- Rows missing? Only mailboxes that finished being created are exported. Export again once new mailboxes show as active.
Daily limit in Instantly
Instantly's Daily Limit is the campaign (cold) limit, so the file sets 15, the recommended default, and a lower value if you have set a lower Winnr daily send limit on that mailbox. Keep cold sending at 10 to 20 per mailbox per day and each mailbox's total, cold plus warming, at 50 or under. Warm new mailboxes for at least two weeks before they send cold.
What's next
Step-by-step
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1. Select the mailboxes in Winnr
Open Email Users and tick the mailboxes you want in Instantly. To take one domain, filter by it and tick the header checkbox. With nothing ticked, the export includes every mailbox in your account.
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2. Export in the Instantly format
Click Export, choose Instantly under Export Format (the search box finds it quickly), then click the Export button.
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3. Download the CSV
Click Download CSV. The link lasts 15 minutes, so export again if it has expired. The file holds passwords in plain text, so keep it private.
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4. Decide on warmup
The file sets Warmup Enabled to FALSE. If Instantly does the warming instead of Winnr, change that column to TRUE before uploading, or turn Instantly's warmup on after import.
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5. Upload to Instantly
In Instantly, go to Email Accounts, add new accounts, choose the any-provider (SMTP/IMAP) option and use the bulk CSV import to upload the file.
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6. Confirm every mailbox connected
Instantly tests SMTP and IMAP for each account. Check every mailbox shows as connected before adding it to a campaign.
Frequently asked questions
Why is Warmup Limit 35 when warmup is off?
The warmup values only matter if you switch Instantly's warmup on. 35 warmup emails plus the 15 cold emails in Daily Limit keeps the mailbox at 50 a day in total, and Warmup Increment 1 ramps it up slowly.
Should I use Instantly's warmup or Winnr's?
Pick one per mailbox. Winnr's built-in warming is $0.60 per mailbox per month; if you use it, keep Warmup Enabled at FALSE. Set it to TRUE only if Instantly is doing the warming instead.
Is there a limit on how many accounts one file can hold?
Instantly may cap how many accounts or how large a file one bulk import accepts. If the upload is refused for size, export smaller selections from Winnr and upload them one at a time.
Does sending through Instantly use my Winnr dedicated IP?
Yes. Instantly hands each message to the Winnr SMTP host in the file, so it goes out the same way as any other mail from your Winnr mailboxes, including through a dedicated IP if one is set up on your account.
Some accounts show a connection error in Instantly. What now?
Check the IMAP Password and SMTP Password for that row. A password changed in Winnr after you exported will not match the file. Remove the account in Instantly, export that mailbox again and re-import it. If a fresh export still fails, see the mailbox authentication troubleshooting guide.