Mailbox provider · Rediffmail
How to verify a rediffmail.com email address
Can you verify @rediffmail.com addresses?
YesYes. @rediffmail.com answers mailbox checks one address at a time.
Check one address
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The checker opens an SMTP conversation with rediffmail.com's mail server, offers a random address first to rule out a catch-all, then names your address at RCPT TO and disconnects without sending. A rejection comes back invalid ("Mailbox not found") and an acceptance valid ("Mailbox exists"). Temporary replies come back risky. It always checks the syntax, the domain's MX records, disposable domains and role addresses such as info@ first.
Mailbox existsMailbox not foundServer would not confirmRediffmail addresses can be verified without sending an email. On 12 October 2026 the rediffmail.com mail server mx.rediffmail.rediff.akadns.net rejected a made-up recipient at the SMTP RCPT TO step with 550 Requested action not taken: mailbox unavailable, so a mailbox check can tell a missing rediffmail.com account from a real one.
Price: this tool is free. Checking a whole email list is from $9/mo, and the first 100 checks are free with Google, no card. See pricing
Live DNS snapshot: rediffmail.com
Checked 6 November 2026, 11:12 UTCRead from DNS at the time shown and refreshed at most once a day. MX says where mail for rediffmail.com goes; SPF and DMARC describe mail sent from it, not whether any one address exists.
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mx.rediffmail.rediff.akadns.net
v=spf1 ip4:119.252.144.0/20 ip4:202.137.232.0/21 ip4:114.31.224.0/20 ip4:119.252.156.0/24 ~allp=quarantine: meets the requirement and enforces it.
v=DMARC1; p=quarantine; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]Look up any other domain with the MX lookup or the email provider lookup.
Rediffmail at a glance
| Operated by | Rediff.com India Limited, Mumbai, IndiaSource: Rediff terms of use |
|---|---|
| MX hosts | mx.rediffmail.rediff.akadns.netObserved 12 October 2026 (dig MX) |
| Answer to a made-up address | 550 Requested action not taken: mailbox unavailable, returned at RCPT TOObserved 12 October 2026 (SMTP probe of a made-up recipient, no message sent) |
| Inactive accounts | Users delete accounts through Rediff's Grievance Officer; deletion completes within 30 business daysSource: Rediff terms of use |
| Inactive accounts | Personal data and content are deleted or anonymised within 90 days of account deletion or deactivationSource: Rediff terms of use |
What Rediffmail's server says about a missing mailbox
The reply that matters is the one to RCPT TO, the step where the checking server names the recipient. Rediffmail answered our made-up rediffmail.com address with 550 Requested action not taken: mailbox unavailable. A 5xx code at that step is a permanent "no such mailbox", which is the same answer a real message would get, so SimpleVerifier marks the address invalid with the reason "Mailbox not found". A 250 at the same step means the mailbox exists and comes back valid.
Before trusting a "valid", a careful verifier also offers a random address that cannot exist. Rediffmail rejected ours, so rediffmail.com is not a catch-all: a 250 for your address is a real signal. Temporary 4xx replies (421, 450, 451) are about the connection, not the mailbox, and come back risky with "Server would not confirm" rather than invalid. Hard bounce vs soft bounce explains why that split matters.
"Mailbox unavailable" is the generic wording RFC 5321 gives for a 550 reply, so the code, not the text, carries the verdict: a permanent rejection at RCPT TO.
Rediffmail deletions are final
Rediff's terms describe account deletion as final, with data removed within 90 days of deletion or deactivation. A Rediffmail address that starts bouncing as unknown should be treated as gone, not paused.
The terms give no inactivity period, so older Indian consumer lists with rediffmail.com addresses are worth checking before each campaign rather than trusting an old result.
Cleaning rediffmail.com addresses on a list
Because Rediffmail answers honestly, rediffmail.com is one of the domains where verification removes bounces before they happen. Drop the invalid results, keep the valid ones, and re-check the risky ones later: a temporary reply on one day often turns into a clear answer the next.
A valid result only means the mailbox exists today. Addresses on an old consumer list go stale as people stop using them, so re-verify before each large send to an aged segment; how often to verify an email list gives a schedule. Upload the CSV to the verifier and download the valid, risky and invalid rows as separate files.
Common questions
- Can you verify @rediffmail.com addresses?
- Yes. @rediffmail.com answers mailbox checks one address at a time. The checker opens an SMTP conversation with rediffmail.com's mail server, offers a random address first to rule out a catch-all, then names your address at RCPT TO and disconnects without sending. A rejection comes back invalid ("Mailbox not found") and an acceptance valid ("Mailbox exists"). Temporary replies come back risky. It always checks the syntax, the domain's MX records, disposable domains and role addresses such as info@ first.
- Can I check if a rediffmail.com address exists without emailing it?
- Yes. A verifier connects to Rediffmail's mail server, names the address at the RCPT TO step and disconnects before sending. On 12 October 2026 the server rejected a made-up rediffmail.com address with "550 Requested action not taken: mailbox unavailable", so a missing mailbox shows up as invalid and the owner receives nothing.
- What mail servers does rediffmail.com use?
- On 12 October 2026, rediffmail.com published these MX hosts: mx.rediffmail.rediff.akadns.net. You can look them up yourself with the free MX lookup tool.
- Why did a rediffmail.com address come back risky instead of invalid?
- Risky means the server didn't give a permanent answer during the check, usually a temporary 4xx reply or a timeout. It isn't proof the address is bad. Check it again later; Rediffmail gave a clear rejection for a missing mailbox when we tested it.
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