Assuming a fixed limit
Mail.ru calculates limits from reputation, so a new mailbox can be throttled at volumes an aged one sends easily.
Warm-up by provider
How to warm up a Mail.ru inbox
Short answerTo warm up a Mail.ru mailbox, create a password for external apps, connect over IMAP and SMTP, and ramp slowly from 2-3 to about 30 emails a day. Mail.ru doesn't publish fixed sending limits; it rate-limits based on the mailbox's reputation, so a conservative, steady ramp matters more than elsewhere.
Step by step
Connect Mail.ru to RoxInbox
Connection method: IMAP/SMTP with a password for external apps.
- 1
In your Mail.ru account security settings, create a password for external applications.
- 2
In RoxInbox, choose Add mailbox, then Mail.ru, and enter the address and that password.
- 3
For a business domain, publish SPF, DKIM and DMARC for it.
- 4
RoxInbox confirms access and starts the ramp.
Sending limits 2026
Mail.ru sending limits
Fixed numbers quoted on third-party sites aren't confirmed by Mail.ru. Treat any temporary rejection as a signal to slow down.
| Limit | Value |
|---|---|
| Daily sending limit | Not published by Mail.ru as of the date checked |
| When sending too fast | Temporary rejections asking you to retry later (rate limiting) |
Source: Mail.ru Help, checked 14 October 2026.
Ramp plan
A starting ramp for a new domain.
RoxInbox adapts this daily from real spam signals. Use the calculator for a plan for your own domain.
| Week | Emails per day | Note |
|---|---|---|
| Week 1 | 2-5 | Warm-up only |
| Week 2 | 5-12 | Hold if you see rate-limit errors |
| Week 3 | 12-22 | Placement test with Mail.ru seeds |
| Week 4 | 22-30 | Increase gradually |
Pitfalls
What sends Mail.ru mail to spam
Building reputation with the wrong providers
If your recipients use Mail.ru, reputation built only with other providers doesn't carry over. Make sure your warm-up network includes Mail.ru mailboxes.
Skipping the postmaster
Mail.ru runs its own postmaster service for domain senders. Register your domain to see how Mail.ru treats your mail.
FAQ
Mail.ru warm-up questions
What is Mail.ru's daily sending limit?
Mail.ru doesn't publish one. Limits depend on the mailbox's reputation, and sending too fast produces temporary rate-limit rejections.
Why does my email reach the inbox elsewhere but not at Mail.ru?
Mail.ru keeps its own reputation for your domain. Many warm-up networks have few Mail.ru mailboxes, so reputation there never builds. RoxInbox includes Mail.ru in the network.
Other providers: Outlook / Microsoft 365 · Google Workspace · Yahoo Mail · Zoho Mail · iCloud Mail · Yandex Mail · GMX / WEB.DE · Corporate SMTP
Warm up Mail.ru on autopilot.
RoxInbox connects in five minutes, checks your DNS first, and shows placement at every provider.