Incoming mail is now being rejected for ALL of my users since the upgrade (including a new test account). I do not have restrictions in place and have increased the logging for the most detail. The logs are below. Any idea how to fix this?
2022-02-10 20:11:03 +0000 08 SMTP-IN:00000215: [:25] connection accepted from [:44860]
2022-02-10 20:11:03 +0000 16 SMTP-IN:00000215: >> 220 Axigen ESMTP ready
2022-02-10 20:11:03 +0000 16 SMTP-IN:00000215: << EHLO mail-io1-f53.google.com
2022-02-10 20:11:03 +0000 08 SMTP-IN:00000215: Greylist disabled
2022-02-10 20:11:03 +0000 08 SMTP-IN:00000215: Set max data size to 10240 KB
2022-02-10 20:11:03 +0000 08 SMTP-IN:00000215: Set max received headers to 30
2022-02-10 20:11:03 +0000 08 SMTP-IN:00000215: Maximum recipient count set to 1000
2022-02-10 20:11:03 +0000 08 SMTP-IN:00000215: Wait for processing response at least 10 seconds
2022-02-10 20:11:03 +0000 08 SMTP-IN:00000215: STARTTLS extension allowed
2022-02-10 20:11:03 +0000 08 SMTP-IN:00000215: 8BIT MIME accepted
2022-02-10 20:11:03 +0000 08 SMTP-IN:00000215: BINARY DATA extension allowed
2022-02-10 20:11:03 +0000 08 SMTP-IN:00000215: PIPELINING extension allowed
2022-02-10 20:11:03 +0000 08 SMTP-IN:00000215: DSN extension denied
2022-02-10 20:11:03 +0000 08 SMTP-IN:00000215: Set local delivery to auth
2022-02-10 20:11:03 +0000 08 SMTP-IN:00000215: Set remote delivery to auth
2022-02-10 20:11:03 +0000 16 SMTP-IN:00000215: >> 250- Axigen ESMTP hello
2022-02-10 20:11:03 +0000 16 SMTP-IN:00000215: >> 250-PIPELINING
2022-02-10 20:11:03 +0000 16 SMTP-IN:00000215: >> 250-AUTH PLAIN LOGIN CRAM-MD5 DIGEST-MD5 GSSAPI
2022-02-10 20:11:03 +0000 16 SMTP-IN:00000215: >> 250-AUTH=PLAIN LOGIN CRAM-MD5 DIGEST-MD5 GSSAPI
2022-02-10 20:11:03 +0000 16 SMTP-IN:00000215: >> 250-8BITMIME
2022-02-10 20:11:03 +0000 16 SMTP-IN:00000215: >> 250-BINARYMIME
2022-02-10 20:11:03 +0000 16 SMTP-IN:00000215: >> 250-CHUNKING
2022-02-10 20:11:03 +0000 16 SMTP-IN:00000215: >> 250-SIZE 10485760
2022-02-10 20:11:03 +0000 16 SMTP-IN:00000215: >> 250-STARTTLS
2022-02-10 20:11:03 +0000 16 SMTP-IN:00000215: >> 250-HELP
2022-02-10 20:11:03 +0000 16 SMTP-IN:00000215: >> 250 OK
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: << STARTTLS
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 220 Ready to start TLS
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: << SSL: client hello, remote :44860, version TLS 1.3 (0304)
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: << SSL: client hello, remote :44860, session id 3XXXXXXX
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: << SSL: client hello, remote :44860, 19 cipher suites: 30xxxxxxxx
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: << SSL: client hello, remote :44860, sni extension for mail..net
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> SSL: server hello, remote :44860, version TLS 1.2 (0303)
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> SSL: server hello, remote :44860, cipher suite c02f
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> SSL: server write cert, remote :44860, version TLS 1.2 (0303)
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> SSL: server write cert, remote :44860, certificate 1: serial 28437xxxxxxxxx
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: << EHLO mail-io1-f53.google.com
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: Greylist disabled
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: Set max data size to 10240 KB
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: Set max received headers to 30
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: Maximum recipient count set to 1000
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: Wait for processing response at least 10 seconds
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: STARTTLS extension allowed
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: 8BIT MIME accepted
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: BINARY DATA extension allowed
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: PIPELINING extension allowed
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: DSN extension denied
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: Set local delivery to auth
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: Set remote delivery to auth
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 250- Axigen ESMTP hello
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 250-PIPELINING
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 250-AUTH PLAIN LOGIN CRAM-MD5 DIGEST-MD5 GSSAPI
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 250-AUTH=PLAIN LOGIN CRAM-MD5 DIGEST-MD5 GSSAPI
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 250-8BITMIME
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 250-BINARYMIME
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 250-CHUNKING
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 250-SIZE 10485760
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 250-HELP
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 250 OK
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: << MAIL FROM:<@gmail.com> SIZE=2553
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: Created new queue item with id 000E4748
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: Greylist disabled
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 250 Sender accepted
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: << RCPT TO:<@.net>
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 550 Delivery not allowed to <.net>
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: Reject delivery to .net for mail 0E4748
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: << BDAT 2553 LAST
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: << 2553 bytes read
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: << Last chunk of 2553 bytes read
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 503 Unexpected chunk received
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: << QUIT
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: Set mail state to REMOVED
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 221-warning: unfinished mail transaction
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 221- Axigen ESMTP is closing connection
2022-02-10 20:11:04 +0000 16 SMTP-IN:00000215: >> 221 Good bye
2022-02-10 20:11:04 +0000 08 SMTP-IN:00000215: closing session from [:44860]