In Winnr go to Email Users → Export, choose WarmySender, click Export, then Download CSV. In WarmySender, use its bulk mailbox import to upload the file. The file sets daily_limit to 15, timezone to UTC and warmup_enabled to FALSE, so review those three columns before you upload.
WarmySender is a cold-email tool with built-in warmup. Winnr provisions and warms the mailboxes; WarmySender runs the campaigns.
What's in the WarmySender file
| Column | What Winnr puts in it |
|---|---|
| from_name | The mailbox's display name |
| The full email address | |
| smtp_host | That mailbox's mail server |
| smtp_port | 465 (SSL) |
| imap_host | That mailbox's mail server |
| imap_port | 993 (SSL) |
| username | The full email address |
| password | The mailbox password, for SMTP and IMAP |
| daily_limit | 15, or the mailbox's Winnr daily send limit if lower |
| timezone | UTC |
| warmup_enabled | FALSE |
Check before you upload
- timezone. UTC for every row. If your prospects are in one region, set their time zone so sending windows line up with their working day.
- warmup_enabled. FALSE so a mailbox Winnr warms is not warmed twice. Running both pushes the mailbox past 50 emails a day.
- No encryption column. If WarmySender asks, choose SSL: 465 for SMTP and 993 for IMAP.
Daily limit in WarmySender
WarmySender reads the per-mailbox limit from daily_limit, pre-filled with 15. 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 WarmySender. 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 WarmySender format
Click Export, choose WarmySender 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. Review warmup, limit and timezone
The file sets daily_limit to 15, warmup_enabled to FALSE and timezone to UTC. Change timezone to your prospects' zone if you schedule by local time, and set warmup_enabled to TRUE only if WarmySender does the warming instead of Winnr.
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5. Upload to WarmySender
In WarmySender, use the bulk (CSV) import for SMTP/IMAP mailboxes and upload the file.
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6. Confirm every mailbox connected
Check every mailbox shows as connected before adding it to a campaign.
Frequently asked questions
Why is timezone set to UTC?
Winnr sets UTC on every row. Change it in the file or in WarmySender if your sending schedule should follow a local time zone.
Why is there one username and one password?
WarmySender's layout uses a single login for SMTP and IMAP. That suits Winnr mailboxes, where username is the full address and one password covers both.
Should I use WarmySender'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, leave warmup_enabled at FALSE. Change it to TRUE only if WarmySender is doing the warming instead.
What daily limit does the file set?
15, or the mailbox's Winnr daily send limit if that is lower. Keep cold campaigns at 10 to 20 per mailbox per day and each mailbox's total, cold plus warming, at 50 or under.
WarmySender cannot connect to a mailbox. What now?
Check the password in that row against the mailbox in Winnr. A password changed after you exported will not match the file. Export that mailbox again and re-import it. If a fresh export still fails, see the mailbox authentication troubleshooting guide.