| bounced |
2026-04-04 18:04:08 |
137.74.217.88 |
avinshah@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 137.74.217.88 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information. |
| bounced |
2026-04-04 18:04:02 |
137.74.217.88 |
aptedevendra@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 137.74.217.88 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information. |
| bounced |
2026-04-04 18:03:56 |
137.74.217.88 |
gokulmajithiya@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 137.74.217.88 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information. |
| bounced |
2026-04-04 18:03:45 |
137.74.217.88 |
ajothilakshmi@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 137.74.217.88 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information. |
| bounced |
2026-04-04 18:03:38 |
137.74.217.88 |
kartikmjain@ymail.com |
|
mta6.am0.yahoodns.net (67.195.228.106) |
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 137.74.217.88 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information. |
| bounced |
2026-04-04 18:03:35 |
137.74.217.88 |
kamakshikesavaraj@ymail.com |
|
mta6.am0.yahoodns.net (67.195.228.106) |
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 137.74.217.88 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information. |
| bounced |
2026-04-04 18:03:07 |
137.74.217.88 |
CA.SUMITJAIN@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 137.74.217.88 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information. |