Works with every email service.
Indo Mail is standard email. You can write to and receive from any other email service, and use Indo Mail in the mail app you already like.
Send and receive with anyone.
Your @indoemail.in address works with every other email service in the world. Mail you send is signed with DKIM and covered by our SPF and DMARC records, which helps it reach the inbox rather than the spam folder. Mail sent to you arrives from any service that sends standard email.
Sending
Messages leave from our sending servers in Mumbai, signed with DKIM. Replies, forwarding, attachments and calendar invitations all work with other services.
Receiving
We accept mail from every service, check it for spam, phishing and risky attachments such as programs and macro documents, and sort it into your inbox tabs.
Encryption
Mail to other services is protected in transit with TLS when their server supports it. End-to-end encryption works only between Indo Mail accounts.
Use Indo Mail in your mail app.
Any mail app on a phone or computer that supports IMAP can use Indo Mail.
| Setting | Value |
|---|---|
| Incoming mail (IMAP) server | mail.indoemail.in |
| IMAP port and security | 993, SSL/TLS |
| Outgoing mail (SMTP) server | mail.indoemail.in |
| SMTP port and security | 465 with SSL/TLS, or 587 with STARTTLS |
| User name | Your full Indo Mail address |
| Password | An app password, not your account password |
| POP3 | Not offered. IMAP keeps your mail in step on every device |
App passwords: make one in Settings → Mail apps for each app you use. Mail apps never see your real password, so 2-Step Verification stays strong, and you can remove one app’s access without changing your password. Deleting a message in a mail app moves it to Trash, where it stays for 30 days.
The numbers.
| Limit | Amount |
|---|---|
| Size of one message, including attachments | 25 MB |
| Attachments per message | Up to 20 files |
| Bigger files | Share them from Indo Drive with a link instead |
| Recipients you can send to in 24 hours | 500 |
| Recipients in 24 hours, for accounts in their first 7 days | 50 |
| Addresses that bounced as “does not exist” | Not mailed again for 30 days |
Limits stop stolen or throw-away accounts from sending spam, which keeps mail from every Indo Mail user arriving in inboxes.
Why a message came back.
| What the bounce says | What it means | What to do |
|---|---|---|
| Address does not exist / user unknown | The address is wrong or the account was closed | Check the spelling. We will not try that address again for 30 days |
| Mailbox full | The person is out of storage | Try later or contact them another way |
| Message too large | Over 25 MB, or over the other service’s own limit | Send a Drive link instead of the attachment |
| Rejected as spam / blocked | The other service did not trust the message | Avoid link shorteners and large mailing lists from a personal account. Tell support if it keeps happening |
| Daily sending limit reached | You reached 500 recipients (50 for new accounts) in 24 hours | Wait and try again. Business accounts can ask sales about higher limits |
| Delivery delayed | The other server did not answer yet | Nothing. We keep trying for about 5 days, tell you if it is taking long, and tell you if we give up |
SPF, DKIM and DMARC.
Using Indo Mail on your own domain? Add these records at the company where you bought the domain. The admin console shows the exact values for your domain and checks them for you.
| Record | What it does | Where to find the value |
|---|---|---|
| MX | Sends mail for your domain to Indo Mail | Admin console → DNS setup & verification |
| SPF (TXT) | Lists the servers allowed to send for your domain | Admin console → DNS setup & verification |
| DKIM (TXT) | A signature that proves mail really came from your domain | Admin console → DNS setup & verification |
| DMARC (TXT) | Tells other services what to do with mail that fails SPF and DKIM | Start with p=none, then move to quarantine once all is green |
Changes can take up to 48 hours to spread. The DNS check in the admin console turns green for each record once it is found.
Tips for good delivery.
- Write from your real name, with a clear subject.
- Ask people to add your address to their contacts.
- Do not send the same message to hundreds of people from a personal account; use a mailing service built for newsletters.
- Avoid link shorteners and attachments people did not expect.
- If a message of yours lands in someone’s spam, ask them to mark it “Not spam”.