PowerMTA™ 4.5r11 
mailing.institutfrancais-maroc.com 

Help
Domain Detail
nameyahoo.fr
recipients71
kbytes9,678.5
active connections0
Queues
vmta recipients kbytes connections paused mode % recipients
pmta-vmta8 42 5,962.6 0 no normal 59%
pmta-vmta16 29 3,715.8 0 no normal 40%
Last Errors
vmtatimeerror
pmta-vmta16 2026-04-14 01:04:02 Error: "421 4.7.0 [TSS04] Messages from 149.202.125.139 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api16.institutfrancais-maroc.com (149.202.125.139) to mx-eu.mail.am0.yahoodns.net (188.125.72.74) (5x)
pmta-vmta16 2026-04-14 01:04:01 Error: "421 4.7.0 [TSS04] Messages from 149.202.125.139 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api16.institutfrancais-maroc.com (149.202.125.139) to mx-eu.mail.am0.yahoodns.net (188.125.72.74) (8x)
pmta-vmta16 2026-04-14 01:04:01 Error: "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 institutfrancais-maroc.com with ip 149.202.125.139 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from api16.institutfrancais-maroc.com (149.202.125.139) to mx-eu.mail.am0.yahoodns.net (188.125.72.74)
pmta-vmta16 2026-04-14 01:04:01 Error: "421 4.7.0 [TSS04] Messages from 149.202.125.139 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api16.institutfrancais-maroc.com (149.202.125.139) to mx-eu.mail.am0.yahoodns.net (188.125.72.74)
pmta-vmta16 2026-04-14 01:04:00 Error: "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 ifmaroc.com with ip 149.202.125.139 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from api16.institutfrancais-maroc.com (149.202.125.139) to mx-eu.mail.am0.yahoodns.net (188.125.72.74)
pmta-vmta8 2026-04-14 01:03:51 Error: "421 4.7.0 [TSS04] Messages from 149.202.116.95 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api8.institutfrancais-maroc.com (149.202.116.95) to mx-eu.mail.am0.yahoodns.net (188.125.72.74) (16x)
pmta-vmta8 2026-04-14 01:03:50 Error: "421 4.7.0 [TSS04] Messages from 149.202.116.95 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api8.institutfrancais-maroc.com (149.202.116.95) to mx-eu.mail.am0.yahoodns.net (188.125.72.74) (5x)
pmta-vmta8 2026-04-14 01:03:50 Error: "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 ifmaroc.com with ip 149.202.116.95 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from api8.institutfrancais-maroc.com (149.202.116.95) to mx-eu.mail.am0.yahoodns.net (188.125.72.74) (3x)
pmta-vmta16 2026-04-14 00:34:00 Error: "421 4.7.0 [TSS04] Messages from 149.202.125.139 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api16.institutfrancais-maroc.com (149.202.125.139) to mx-eu.mail.am0.yahoodns.net (188.125.72.74) (5x)
pmta-vmta16 2026-04-14 00:33:59 Error: "421 4.7.0 [TSS04] Messages from 149.202.125.139 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api16.institutfrancais-maroc.com (149.202.125.139) to mx-eu.mail.am0.yahoodns.net (188.125.72.74) (11x)
pmta-vmta8 2026-04-14 00:33:49 Error: "421 4.7.0 [TSS04] Messages from 149.202.116.95 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api8.institutfrancais-maroc.com (149.202.116.95) to mx-eu.mail.am0.yahoodns.net (188.125.72.74) (3x)
pmta-vmta8 2026-04-14 00:33:48 Error: "421 4.7.0 [TSS04] Messages from 149.202.116.95 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api8.institutfrancais-maroc.com (149.202.116.95) to mx-eu.mail.am0.yahoodns.net (188.125.72.74) (18x)
pmta-vmta8 2026-04-14 00:33:47 Error: "421 4.7.0 [TSS04] Messages from 149.202.116.95 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api8.institutfrancais-maroc.com (149.202.116.95) to mx-eu.mail.am0.yahoodns.net (188.125.72.74) (3x)
pmta-vmta16 2026-04-14 00:03:58 Error: "421 4.7.0 [TSS04] Messages from 149.202.125.139 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api16.institutfrancais-maroc.com (149.202.125.139) to mx-eu.mail.am0.yahoodns.net (188.125.72.73)
pmta-vmta16 2026-04-14 00:03:57 Error: "421 4.7.0 [TSS04] Messages from 149.202.125.139 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api16.institutfrancais-maroc.com (149.202.125.139) to mx-eu.mail.am0.yahoodns.net (188.125.72.73) (12x)
pmta-vmta16 2026-04-14 00:03:56 Error: "421 4.7.0 [TSS04] Messages from 149.202.125.139 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api16.institutfrancais-maroc.com (149.202.125.139) to mx-eu.mail.am0.yahoodns.net (188.125.72.73) (2x)
pmta-vmta8 2026-04-14 00:03:47 Error: "421 4.7.0 [TSS04] Messages from 149.202.116.95 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api8.institutfrancais-maroc.com (149.202.116.95) to mx-eu.mail.am0.yahoodns.net (188.125.72.73) (6x)
pmta-vmta8 2026-04-14 00:03:46 Error: "421 4.7.0 [TSS04] Messages from 149.202.116.95 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from api8.institutfrancais-maroc.com (149.202.116.95) to mx-eu.mail.am0.yahoodns.net (188.125.72.73) (15x)
pmta-vmta8 2026-04-14 00:03:46 Error: "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 institutfrancais-maroc.com with ip 149.202.116.95 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from api8.institutfrancais-maroc.com (149.202.116.95) to mx-eu.mail.am0.yahoodns.net (188.125.72.73)
pmta-vmta8 2026-04-14 00:03:45 Error: "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 institutfrancais-maroc.com with ip 149.202.116.95 = FAILURE. See https://senders.yahooinc.com/smtp-error-codes/#authentication-failures for more information." while connected from api8.institutfrancais-maroc.com (149.202.116.95) to mx-eu.mail.am0.yahoodns.net (188.125.72.73)