| bounced |
2026-04-04 18:03:55 |
51.68.102.55 |
doshiprashant@ymail.com |
|
mta7.am0.yahoodns.net (67.195.228.109) |
smtp;550 5.7.9 This mail has been blocked because the sender is unauthenticated. Yahoo requires all senders to authenticate with either SPF or DKIM. Authentication results: DKIM = FAILURE - SPF bcsonline.org.in with ip 51.68.102.55 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information. |
| bounced |
2026-04-04 18:03:49 |
51.68.102.55 |
dhaval18@ymail.com |
|
mta5.am0.yahoodns.net (67.195.204.72) |
smtp;550 5.7.9 This mail has been blocked because the sender is unauthenticated. Yahoo requires all senders to authenticate with either SPF or DKIM. Authentication results: DKIM = FAILURE - SPF bcsonline.org.in with ip 51.68.102.55 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information. |
| bounced |
2026-04-04 18:03:26 |
51.68.102.55 |
carakeshjha@ymail.com |
|
mta7.am0.yahoodns.net (67.195.204.74) |
smtp;550 5.7.9 This mail has been blocked because the sender is unauthenticated. Yahoo requires all senders to authenticate with either SPF or DKIM. Authentication results: DKIM = FAILURE - SPF bcsonline.org.in with ip 51.68.102.55 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information. |
| bounced |
2026-04-04 18:03:24 |
51.68.102.55 |
vaishnavi_ca@ymail.com |
|
mta5.am0.yahoodns.net (67.195.204.72) |
smtp;550 5.7.9 This mail has been blocked because the sender is unauthenticated. Yahoo requires all senders to authenticate with either SPF or DKIM. Authentication results: DKIM = FAILURE - SPF bcsonline.org.in with ip 51.68.102.55 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information. |
| bounced |
2026-04-04 18:03:01 |
51.68.102.55 |
sudheendrakumar@ymail.com |
|
mta7.am0.yahoodns.net (67.195.204.74) |
smtp;550 5.7.9 This mail has been blocked because the sender is unauthenticated. Yahoo requires all senders to authenticate with either SPF or DKIM. Authentication results: DKIM = FAILURE - SPF bcsonline.org.in with ip 51.68.102.55 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information. |
| bounced |
2026-04-04 18:00:34 |
51.68.102.55 |
singla86@ymail.com |
|
mta6.am0.yahoodns.net (67.195.204.79) |
smtp;550 5.7.9 This mail has been blocked because the sender is unauthenticated. Yahoo requires all senders to authenticate with either SPF or DKIM. Authentication results: DKIM = FAILURE - SPF bcsonline.org.in with ip 51.68.102.55 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information. |