PowerMTA queue detail

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Queue Detail
name	algosur.com/pmta-vmta1
recipients	0
kbytes	0.0
active connections	0
paused	no
mode	backoff
backoff reason	2024-09-10 09:03:10 "554 kundenserver.de (mxeue003) Nemesis ESMTP Service not available No SMTP service Invalid DNS PTR resource record For explanation visit https://postmaster.1und1.de/en/case?c=r0602&i=ip&v=191.96.16.0&r=1Mit40-1sKPO615y0-00lSZk" received from mx00.ionos.es (212.227.15.41) matching /Service not available/
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Last Errors
time	error
2024-09-10 09:03:10	SMTP service denied: "554 kundenserver.de (mxeue003) Nemesis ESMTP Service not available No SMTP service Invalid DNS PTR resource record For explanation visit https://postmaster.1und1.de/en/case?c=r0602&i=ip&v=191.96.16.0&r=1Mit40-1sKPO615y0-00lSZk" received from mx00.ionos.es (212.227.15.41) while connected from a1.smtp-out.sell-abroad.com (191.96.16.0) to mx00.ionos.es (212.227.15.41)

Recipient Events (Deliveries: 0, Bounces: 1, Deferrals: 0)
Event	Time	Source IP	Address	Job ID	Destination MTA	Additional Information
bounced	2024-09-10 09:03:10	191.96.16.0	csilgado@algosur.com		mx00.ionos.es (212.227.15.41)	smtp;554 kundenserver.de (mxeue003) Nemesis ESMTP Service not available No SMTP service Invalid DNS PTR resource record For explanation visit https://postmaster.1und1.de/en/case?c=r0602&i=ip&v=191.96.16.0&r=1Mit40-1sKPO615y0-00lSZk

Settings
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
191.96.16.0	unlimited	unlimited	unlimited
Queue Settings
type	smtp	dkim-headers-canon	relaxed
add-gm-token	no	dkim-identity	abuse@sell-abroad.com
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	6/m	log-disabled-ips	no
backoff-max-smtp-out	5	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	never	max-errors-per-connection	10
backoff-to-normal-after-delivery	no	max-events-recorded	10
backoff-upon-all-sources-disabled	no	max-msg-per-connection	100
bcc-upon-delivery		max-msg-rate	250/h
bounce-after	20m	max-rcpt-per-message	1000
bounce-upon-5xx-greeting	yes	max-smtp-out	5
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	2m	replace-smtp-421-service-response	no
data-send-timeout	3m	require-starttls	no
default-smtp-port	25	retry-after	10m
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	no	smtp-data-termination-timeout	10m
dkim-add-body-limit	no	smtp-greeting-timeout	5m
dkim-add-timestamp	no	smtp-hosts
dkim-algorithm	rsa-sha1	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