Deliverability to rediffmail.com
Rediff.com is an India-based media company founded by Ajit Balakrishnan in 1996. In 2004, Rediffmail.com was quite possibly the first email service provider to offer 1GB of storage space on all its free email accounts. Other large email service providers would eventually follow suit, making Rediffmail.com one of email communications' early trailblazers.  

Emails Sent to rediffmail.com: 9,927,287

Open Rate to rediffmail.com: 447,909 (4.5%)

Date range:
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Sent vs Opens for rediffmail.com

Date Sent Opens Open Rate
1/25/2025 2,446 63 0.0%
1/24/2025 3,297 195 0.0%
1/18/2025 1,965 80 0.0%
1/17/2025 3,346 218 0.0%
1/16/2025 2,552 178 0.0%
1/15/2025 2,738 202 0.0%
1/14/2025 3,128 205 0.0%
1/13/2025 3,475 206 0.0%
1/12/2025 2,572 72 0.0%
1/11/2025 4,997 185 0.0%
1/10/2025 3,436 236 0.0%
1/9/2025 2,835 201 0.0%
1/8/2025 4,485 211 0.0%
1/7/2025 5,346 272 0.0%
1/6/2025 4,329 247 0.0%
1/4/2025 4,977 118 0.0%
1/3/2025 4,387 204 0.0%
1/2/2025 3,959 163 0.0%
1/1/2025 2,157 155 0.0%
12/31/2024 3,084 210 0.0%
12/30/2024 2,916 237 0.0%
12/29/2024 1,453 95 0.0%
12/28/2024 4,526 171 0.0%
12/27/2024 2,382 205 0.0%
12/26/2024 2,384 185 0.0%
12/25/2024 1,938 241 0.0%
12/24/2024 3,103 198 0.0%
12/23/2024 2,977 198 0.0%
12/22/2024 1,031 73 0.0%
12/21/2024 1,782 111 0.0%

Blocks from rediffmail.com

No blocks during specified time frame

Bounces from rediffmail.com

Explanation of bounce codes

Message Count
550 Requested action not taken: mailbox unavailable 21,114
550-5.1.1 The email account that you tried to reach does not exist. Please try 550-5.1.1 double-checking the recipient's email address for typos or 550-5.1.1 unnecessary spaces. For more information, go to 550 5.1.1 https://support.google.com/mail/?p=NoSuchUser 1
554 'From' header is missing 1

Methodology

Send and open statistics are updated daily. Bounces and blocks are updated in real-time. Every day, open statistics are updated for the last 14 days. Generally, you'll notice an increase of an open rate for a domain for a day over the course of 14 days, since not all open events occur the same day an email is sent. That means that open rate data is tied to the actual emails sent on a particular day.

Bounce and block codes are the codes as returned by the remote SMTP server after having been de-personalized. Meaning, unique identifiers present in SMTP codes are removed so that SMTP responses can be grouped for analysis. In certain cases, such as when the email is being relayed through an intermediary SMTP server, the remote SMTP server may not be the same as the MX record for the domain. SMTP codes are categorized as "bounces" vs "blocks" by internal human review. Bounces generally indicate an invalid email address. Blocks generally indicate a rejection of the email message but a valid email address.

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