Help
Queue Detail name rocketmail.com/pmta51-167 recipients 1 kbytes 7.5 active connections 0 paused no mode normal backoff reason next retry 2026-04-04 22:59:03
Last Errors time error 2026-04-04 18:59:03
Error: "421 4.7.0 [TSS04] Messages from 51.68.59.167 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes" while connected from neptune.streamad.in (51.68.59.167) to mta7.am0.yahoodns.net (67.195.228.109)
Recipient Events (Deliveries: 0, Bounces: 0, Deferrals: 1) Show
deferred
2026-04-04 18:59:03
51.68.59.167
Nitin.sathe@rocketmail.com
mta7.am0.yahoodns.net (67.195.228.109)
smtp;421 4.7.0 [TSS04] Messages from 51.68.59.167 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes
Settings Show
VMTA Settings
max-smtp-msg-rate
unlimited
max-smtp-out
unlimited
Source IP Limits
Source IP Address
source-ip-max-smtp-out
source-ip-max-msg-rate
source-ip-max-connect-rate
51.68.59.167
unlimited
unlimited
unlimited
Queue Settings
type
smtp
dkim-headers-canon
relaxed
add-gm-token
no
dkim-identity
sender-or-from
allow-cancel-during-transfer
yes
dkim-sign
yes
allow-priority-interruption
yes
ignore-8bitmime
no
allow-priority-interruption-during-transfer
no
ignore-chunking
yes
assume-delivery-upon-data-termination-timeout
yes
ignore-pipelining
no
auth-password
log-commands
no
auth-username
log-connections
no
backoff-max-connect-rate
unlimited
log-data
no
backoff-max-msg-rate
500/h
log-disabled-ips
no
backoff-max-smtp-out
6
log-resolution
no
backoff-notify
log-transfer-failures
no
backoff-reroute-to-virtual-mta
max-cold-virtual-mta-msg
0/d
backoff-retry-after
1h
max-connect-rate
unlimited
backoff-to-normal-after
1h
max-errors-per-connection
1000
backoff-to-normal-after-delivery
yes
max-events-recorded
10
backoff-upon-all-sources-disabled
no
max-msg-per-connection
6
bcc-upon-delivery
max-msg-rate
600/h
bounce-after
1d
max-rcpt-per-message
1000
bounce-upon-5xx-greeting
yes
max-smtp-out
6
bounce-upon-no-mx
yes
notify-of-delay-every
4h
bounce-upon-pix-transfer-failure
no
pix-bug-workaround
yes
bounce-upon-transfer-failure
no
queue-priority
50
check-mfrom-outbound
no
reenable-source-ip-after
never
check-pra-outbound
no
remove-header
connect-timeout
30s
replace-smtp-421-service-response
no
data-send-timeout
1m
require-starttls
no
default-smtp-port
25
retry-after
4h
deliver-local-dsn
yes
retry-upon-new-mail
no
disable-acct-records
smtp-421-means-mx-unavailable
no
disable-mx-rollup
no
smtp-553-means-invalid-mailbox
yes
dk-sign
yes
smtp-data-termination-timeout
10m
dkim-add-body-limit
no
smtp-greeting-timeout
15s
dkim-add-timestamp
no
smtp-hosts
dkim-algorithm
rsa-sha256
smtp-pattern-list
blocking-errors
dkim-body-canon
relaxed
smtp-tls-allow-SSLv3
yes
dkim-disallow-adding-headers
smtp-tls-allow-TLSv1
yes
dkim-expire-after
never
use-starttls
yes
dkim-headers
use-unencrypted-plain-auth
no
