Deliverability to gmail.com
Odds are you have a Gmail account and have checked that account several times today already. To little surprise, and at just 16 years since inception, Gmail.com is the world’s most widely used email service with over 1.5 billion active users as of 2019. Gmail was created by Tech Engineer Paul Buchheit in 2001 along with a team of just about a dozen other co-workers. Gmail’s creator is also credited for Google’s "Don't be evil" motto.  

Emails Sent to gmail.com: 2,887,285,584

Open Rate to gmail.com: 438,349,113 (15.2%)

Date range:
Display as:

Sent vs Opens for gmail.com

Date Sent Opens Open Rate
1/25/2025846,99658,9176.9%
1/24/20251,272,578167,17413.1%
1/18/2025783,03371,0989%
1/17/20251,228,999173,28314%
1/16/20251,116,441165,01214.7%
1/15/20251,056,104176,47316.7%
1/14/20251,247,594232,83218.6%
1/13/20251,289,568194,51415%
1/12/2025573,75882,29614.3%
1/11/2025821,376116,11614.1%
1/10/20251,377,288209,90515.2%
1/9/20251,051,646160,85415.2%
1/8/20251,036,560171,14116.5%
1/7/20251,183,362193,87316.3%
1/6/2025968,586176,47318.2%
1/4/2025684,95756,4728.2%
1/3/2025805,104126,58515.7%
1/2/2025886,373139,78415.7%
1/1/2025553,03780,68314.5%
12/31/2024884,646133,39515%
12/30/2024845,436138,10516.3%
12/29/2024521,45264,83212.4%
12/28/2024661,59287,85213.2%
12/27/2024859,188106,51412.3%
12/26/2024755,26294,55812.5%
12/25/2024676,53094,57513.9%
12/24/2024993,529163,05116.4%
12/23/2024804,029139,56017.3%
12/22/2024407,03856,84813.9%
12/21/2024454,14569,07615.2%

Blocks from gmail.com

No blocks during specified time frame

Bounces from gmail.com

Explanation of bounce codes

Message Count
Invalid:550-MailboxUnavailable 102,589
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 60,497
452-4.2.2 The recipient's inbox is out of storage space. Please direct the 452-4.2.2 recipient to 452 4.2.2 https://support.google.com/mail/?p=OverQuotaTemp 47,853
552-5.2.2 The recipient's inbox is out of storage space and inactive. Please 552-5.2.2 direct the recipient to 552 5.2.2 https://support.google.com/mail/?p=OverQuotaPerm 12,339
smtpgm 3,496
550-5.2.1 The email account that you tried to reach is inactive. For more 550-5.2.1 information, go to 550 5.2.1 https://support.google.com/mail/?p=DisabledUser 2,811
550 5.1.1 The email account that you tried to reach does not exist. Please try double-checking the recipient's email address for typos or unnecessary spaces. For more information, go to https://support.google.com/mail/?p=NoSuchUser 1,835
535 5.7.8 Error: authentication failed: 1,122
The email account that you tried to reach does not exist. Please try double-checking the recipient's email address for typos or unnecessary spaces. For more information, go to https://support.google.com/mail/?p=NoSuchUser 794
552 5.2.2 The recipient's inbox is out of storage space and inactive. 331
535 5.7.0 553 sorry, that password allowed relay 218
555 Sorry, the number of messages exceeds our allowed limit 173
DNS Error. DNS type 'mx' lookup responded with code NXDOMAIN 95
550 5.1.8 Access denied, bad outbound sender AS 70
553 5.1.10 No valid recipients: These addresses were excluded 65
535 Authentication credentials invalid 55
552 1 Requested mail action aborted, mailbox not found 43
535 5.7.8 Authentication failed 42
550 5.4.1 Recipient address rejected: Access denied. 41
550 5.2.1 The email account that you tried to reach is inactive. For more information, go to https://support.google.com/mail/?p=DisabledUser 35
Message rejected. For more information, go to https://support.google.com/mail/answer/69585 32
554 5.7.1 is being rejected by destination 22
550 5.5.0 Requested action not taken: mailbox unavailable . 22
554 30 Sorry, your message to cannot be delivered. This mailbox is disabled . 20
Storage quota exceeded 20
The recipient server did not accept our requests to connect. For more information, go to https://support.google.com/mail/answer/7720 17
550 5.1.1 User Unknown 17
NoMxRecord:0-0 14
SMTP; 452-4.2.2 The recipient's inbox is out of storage space. Please direct the 11
A delivery loop was detected which causes this email to be undeliverable. 11
550 Invalid Recipient - https://community.mimecast.com/docs/DOC-1369#550 10
SMTP; 550-5.1.1 The email account that you tried to reach does not exist. Please try 9
550 5.1.10 Recipient not found by SMTP address lookup 9
The group has exceeded its quota for total number of bytes sent. 7
550 5.1.1 recipient rejected 7
550 5.2.1 Mailbox disabled, not accepting messages - freshmail 6
550 No Such User Here 6
550-5.7.25 The IP address sending this message does not have a 550-5.7.25 PTR record setup, or the corresponding forward DNS entry does not 550-5.7.25 match the sending IP. As a policy, Gmail does not accept messages 550-5.7.25 from IPs with missing PTR records. For more information, go to 550-5.7.25 https://support.google.com/a?p=sender-guidelines-ip 5
550 5.2.5 Folder full 5
550 RCPT TO: User unknown 4
550 5.1.1 ... User unknown 4
552 5.2.2 : user is over quota 4
550 5.1.1 Recipient does not exist here. 4
554 5.7.1 The URI in your message has a poor reputation. Reason: https://www.namecheap.com/support/knowledgebase/article.aspx/10664/2216/jellyfish-error-codes/ 3
550 No Such User Here" 3
SMTP; 552-5.2.2 The recipient's inbox is out of storage space and inactive. Please 3
450 Message not queued: recipient is suppressed 3
550-5.7.25 The IP address sending this message does 550-5.7.25 not have a PTR record setup, or the corresponding forward DNS entry 550-5.7.25 does not match the sending IP. As a policy, Gmail does not accept 550-5.7.25 messages from IPs with missing PTR records. For more information, go 550-5.7.25 to 550-5.7.25 https://support.google.com/a?p=sender-guidelines-ip 3
552-5.2.2 The recipient's inbox is out of storage space and inactive. 3
Temporary System Problem. Try again later. 3
554 delivery error: No valid recipients found 2
550 5.5.1 Recipient rejected - - https://postmaster-earthlink.vadesecure.com/inbound_error_codes/#_403 2
action not taken: mailbox unavailable 550 For explanation visit https://postmaster.mail.com/en/case?c=r1601&i=ip&v=209.85.217.68&r=1MUUIg-1tnhNT3XrU-00V1QM 2
550 5.1.1 : Recipient address rejected: User unknown 2
Message temporarily rejected. For more information, go to https://support.google.com/mail/answer/69585 2
550 5.1.1 : Recipient address rejected: User unknown in virtual mailbox table 2
550 5.4.300 Message expired -> 452 4.2.2 The recipient's inbox is out of storage space. Please direct the;recipient to; https://support.google.com/mail/?p=OverQuotaTemp 2
550 5.2.1 ... Addressee unknown, relay= 2
550 Invalid Recipient 2
554 5.1.1 : Recipient address rejected: undeliverable address: Mailbox might be disabled, full, or may not exist on the server. Reason: 2
554 5.1.1 : bounced address: could not resolve address 2
550 5.1.1 : Recipient address rejected: gnplegal.com 2
500 Message rejected 1
511 sorry, no mailbox here by that name 1
554 5.7.1 : Sender address rejected: PPE Hosted Terms of Service: burst rate limit exceeded, you may need to request activating a 'bulk sender' profile. See https://help.proofpoint.com/Proofpoint_Essentials/Email_Security/Administrator_Topics/040_usersandgroups/How_To_Request_Bulk_Sending_Privileges/ 1
421-4.7.0 IP not in whitelist for RCPT domain, closing connection. For more 421-4.7.0 information, go to 421 4.7.0 https://support.google.com/a/answer/60752 1
550 5.7.520 Access denied, Your organization does not allow external forwarding. Please contact your administrator for further assistance. AS 1
550 5.4.316 Message expired, connection refused 1
SMTP; 550 Requested action not taken: mailbox unavailable 1
550-5.1.1 The email account that you tried to reach does not exist. Please try double-checking the recipient's email address for typos or unnecessary spaces. For more information, go to https://support.google.com/mail/?p=NoSuchUser 1
550 5.1.1 : Recipient address rejected: User unknown in local recipient table 1
554 5.7.1 Message refused due to probable spam - see http://mail-cleaner.com/refused-3.html 1
452-4.2.2 The recipient's inbox is out of storage space. Please direct the 452-4.2.2 recipient to 452 4.2.2 https://urldefense.proofpoint.com/v2/url?u=https-3A__support.google.com_mail_-3Fp-3DOverQuotaTemp&d=DwICAQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=1NtIKGFt3zpd4cF5ql7-dBeh6EmMGXh7zh_Qs66qXsE&m=euCJ2wspZ3dAfh1xzGfIh-RfPwe5X2j-NNUILfvkY7-UmyyZ3E3FYk2aNCX2zE7r&s=vbG8RE3T_z2Bmu-z0I3LG3bQFqKGRtAqWQMv7qJd1IA&e= 1
550 The email sent has failed SPF validation and is rejected due to the domain's SPF hard fail policy 1
550 5.1.0 sender rejected. Please see https://www.spectrum.net/support/internet/understanding-email-error-codes 1
x-unix; procmail: Error while writing to "/var/spool/mail/abell" 1
action not taken: mailbox unavailable 550 For explanation visit https://postmaster.mail.com/en/case?c=r1601&i=ip&v=209.85.219.196&r=1MjPPw-1t6bRe2bwQ-00mEXl 1
554 5.7.1 Spam score too high: see http://www.ed.ac.uk/is/email/error 1
554 5.4.14 Hop count exceeded - possible mail loop ATTR34 1
550 5.7.1 relaying denied 1
550-5.7.1 Dear Sender, 550-5.7.1 please contact Julieta Irigoyen at 550-5.7.1 Emails in this mailbox are not monitored anymore. 550-5.7.1 550 5.7.1 Thank you for understanding. - gcdp - gsmtp 1
550 5.1.1 : Recipient address rejected: undeliverable address: No user at this address 1
554 5.7.1 : Recipient address rejected: Sorry, my mailbox is curently over quota. Desole, ma boite mail est actuellement en depassement de quota 1
SMTP; 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
550 5.2.0 Sending Prohibited 1
550 5.5.0 Requested action not taken: mailbox unavailable. 1
Message queue continuously deferred for too long. See https://sendgrid.com/docs/glossary/throttling/#what-causes-a-deferral 1
554 5.2.2 mailbox full; Failed to process message due to a permanent exception with message The process failed to get the correct properties. 1.84300, 1.84300F000000, 1.84300:A1000000, 1.84300, 1.84300, 0.117068C000000, 1.79180, 1.79180F000000, 1.79180:FA000000, 0.73100, 5.95292E, 8.111356F5F19C9441AE441A6536B31ED2F214BA6536B31, 0.38698:A46078CF, 1.41134, 7.36354F7AA0, 1.41134, 7.36354, 0.50486, 5.29818D623332342D313439362D303030302D303030303030303030303030002E3833, 5.55446A300031324D42, 7.29828 1
452 4.1.1 user over quota 1
550 #5.1.0 Address rejected. 1
452 4.2.2 The recipient's inbox is out of storage space. 1
550 5.1.1 User unknown: 1
550 5.1.1 : user does not exist 1
554 5.2.2 mailbox full; Failed to process message due to a permanent exception with message The process failed to get the correct properties. 1.84300, 1.84300F000000, 1.84300:A1000000, 1.84300, 1.84300, 0.117068, 1.79180, 1.79180F000000, 1.79180:FA000000, 0.73100, 5.95292F526F70730061, 8.111356F5F19C9441AE441A6536B31ED2F214B8F5F19C9, 0.38698:A6536B31, 1.41134, 7.36354D140FB9A0, 1.41134, 7.36354D46000000, 0.34102B520000, 5.29818D666666302D316234392D303030302D303030303030303030303030005F19C9, 5.55 1
Invalid Domain 1
550-5.2.1 The user you are trying to contact is receiving mail at a rate that 550-5.2.1 prevents additional messages from being delivered. For more 550-5.2.1 information, go to 550 5.2.1 https://support.google.com/mail/?p=ReceivingRatePerm 1
550 Unrouteable address 1
action not taken: mailbox unavailable 550 For explanation visit https://postmaster.mail.com/en/case?c=r1601&i=ip&v=209.85.219.193&r=1M5QVf-1tZJYO2eIP-001Nrb 1
554 5.7.1 We do not relay berklee.edu 1
550 A URL in this email is listed on https://spamrl.com/. 1
550 5.1.1 Recipient not found. 1
550 5.2.1 RACT 209.85.208.47: Mailbox is inactive: 1
failed due to policy restrictions. 554 For explanation visit https://postmaster.1und1.de/en/case?c=r1103&i=ip&v=209.85.208.68&r=1MeT4y-1t0X0o0Gwu-00hLbv 1
SMTP; 550 Host unknown 1
550 permanent failure for one or more recipients 1
550 No such user 1
421 temporary failure for one or more recipients 1
552 5.2.0 sender rejected. Please see https://www.spectrum.net/support/internet/understanding-email-error-codes 1
452-4.2.2 The recipient's inbox is out of storage space. Please direct the 452-4.2.2 recipient to 452 4.2.2 https://urldefense.proofpoint.com/v2/url?u=https-3A__support.google.com_mail_-3Fp-3DOverQuotaTemp&d=DwICAQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=Kvxv4YIQnEzirt5nAkIRByZZazI9OhhLP5JRBJnRRSU&m=vfjEAnYSRo-_pYivZ3O-FQDM2l8xIxLatOgSQYfAL4z4CgR7dNt_fAkaA9knHxzY&s=Sr0sMWCxY-U6P1KhyKT1nkXBPOg3bcYo9WK86diBrUs&e= 1
550 5.2.1 Recipient is receiving email too quickly. 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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