Clearly something has changed. It may be simply that you are now routing to the isp via ipv6 instead of ipv4, for example.
google how to, and check that all of your public ip (v4 and v6) that may show up as your source address when connecting to outside SMTP servers have PTR records.
this will typically require you to contact your comms provider to add the PTRs if they are missing. On Oct 21, 2024, at 10:55 AM, Steve Matzura via Postfix-users <postfix-users@postfix.org> wrote:
On 10/21/2024 1:33 PM, Wietse Venema
via Postfix-users wrote:
Steve Matzura via Postfix-users:
On 10/21/2024 1:14 PM, Wietse Venema via Postfix-users wrote:
Steve Matzura via Postfix-users:
On 10/21/2024 12:42 PM, postfix--- via Postfix-users wrote:
2024-10-21T16:29:00.942189+00:00 theglobalvoice postfix/qmgr[3900]:
E53B5103176: from=<>, size=3212, nrcpt=1 (queue active)
2024-10-21T16:29:01.124528+00:00 theglobalvoice postfix/smtp[4038]:
E53B5103176: to=<s...@noisynotes.com>,
orig_to=<tgvpad...@theglobalvoice.info>,
relay=mail.gandi.net[2001:4b98:e00::9]:587, delay=0.19,
delays=0/0/0.09/0.09, dsn=5.7.1, status=bounced (host
mail.gandi.net[2001:4b98:e00::9] said: 554 5.7.1
<unknown[2001:4b98:dc0:43:f816:3eff:fee3:4da0]>: Client host
rejected: Access denied (in reply to RCPT TO command))
2024-10-21T16:29:01.126915+00:00 theglobalvoice postfix/qmgr[3900]:
E53B5103176: removed
<unknown[2001:4b98:dc0:43:f816:3eff:fee3:4da0]>
^^^ No PTR or mismatch? Recent DNS change and cache issue?
Mismatch where? The DNS AAA record is correct.
No PTR record (NXDOMAIN).
Your SMTP client IP addres 2001:4b98:dc0:43:f816:3eff:fee3:4da0
does not have a PTR record. It should have one that resolves
to the name in the AAAA redcord.
Has the IP address changed?
Has the DNS changed?
Wietse
Absolutely nothing has changed. I'm the only one who even has a clue
how to make these kinds of changes, and I've been away from this
project for a week now.
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