> Hmm kayaknya ini karena IPshield aktif, bukan karena authentication di smtp 
> port 25 yang di non aktifkan.

> Coba IPshield di non aktifkan.

> http://mdaemon.dutaint.co.id/mdaemon/23.0/security--ip_shielding.html

> [ ] Enable IP Shield

Sudah saya jalankan tetapi masih tertolak Pak, 

Thu 2023-02-23 11:31:09.707: ----------
Thu 2023-02-23 11:31:08.990: [86868091] Session 86868091; child 0013
Thu 2023-02-23 11:31:08.990: [86868091] Accepting SMTP connection from 
104.47.110.49:6258 to 172.16.0.6:25
Thu 2023-02-23 11:31:08.990: [86868091] --> 220 bb.ptbmi.com ESMTP MDaemon 
22.0.3; Thu, 23 Feb 2023 11:31:08 +0700
Thu 2023-02-23 11:31:09.092: [86868091] <-- EHLO 
APC01-TYZ-obe.outbound.protection.outlook.com
Thu 2023-02-23 11:31:09.092: [86868091] --> 250-bb.ptbmi.com Hello 
APC01-TYZ-obe.outbound.protection.outlook.com [104.47.110.49], pleased to meet 
you
Thu 2023-02-23 11:31:09.092: [86868091] --> 250-ETRN
Thu 2023-02-23 11:31:09.092: [86868091] --> 250-AUTH LOGIN CRAM-MD5 PLAIN
Thu 2023-02-23 11:31:09.092: [86868091] --> 250-8BITMIME
Thu 2023-02-23 11:31:09.092: [86868091] --> 250-ENHANCEDSTATUSCODES
Thu 2023-02-23 11:31:09.092: [86868091] --> 250-PIPELINING
Thu 2023-02-23 11:31:09.092: [86868091] --> 250-CHUNKING
Thu 2023-02-23 11:31:09.092: [86868091] --> 250-STARTTLS
Thu 2023-02-23 11:31:09.092: [86868091] --> 250 SIZE
Thu 2023-02-23 11:31:09.195: [86868091] <-- STARTTLS
Thu 2023-02-23 11:31:09.195: [86868091] --> 220 2.7.0 Ready to start TLS
Thu 2023-02-23 11:31:09.413: [86868091] SSL negotiation successful (TLS 1.2, 
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256)
Thu 2023-02-23 11:31:09.513: [86868091] <-- EHLO 
APC01-TYZ-obe.outbound.protection.outlook.com
Thu 2023-02-23 11:31:09.513: [86868091] --> 250-bb.ptbmi.com Hello 
APC01-TYZ-obe.outbound.protection.outlook.com [104.47.110.49], pleased to meet 
you
Thu 2023-02-23 11:31:09.513: [86868091] --> 250-ETRN
Thu 2023-02-23 11:31:09.513: [86868091] --> 250-AUTH LOGIN CRAM-MD5 PLAIN
Thu 2023-02-23 11:31:09.513: [86868091] --> 250-8BITMIME
Thu 2023-02-23 11:31:09.513: [86868091] --> 250-ENHANCEDSTATUSCODES
Thu 2023-02-23 11:31:09.513: [86868091] --> 250-PIPELINING
Thu 2023-02-23 11:31:09.513: [86868091] --> 250-CHUNKING
Thu 2023-02-23 11:31:09.513: [86868091] --> 250-REQUIRETLS
Thu 2023-02-23 11:31:09.513: [86868091] --> 250 SIZE
Thu 2023-02-23 11:31:09.631: [86868091] <-- MAIL 
FROM:<rievo.niem...@m365.ptbmi.com> SIZE=16876
Thu 2023-02-23 11:31:09.636: [86868091] Performing PTR lookup 
(49.110.47.104.IN-ADDR.ARPA)
Thu 2023-02-23 11:31:10.936: [86868091] *  D=49.110.47.104.IN-ADDR.ARPA 
TTL=(60) PTR=[mail-tyzapc01lp2049.outbound.protection.outlook.com]
Thu 2023-02-23 11:31:11.302: [86868091] *  
D=mail-tyzapc01lp2049.outbound.protection.outlook.com TTL=(5) A=[104.47.110.49]
Thu 2023-02-23 11:31:11.302: [86868091] ---- End PTR results
Thu 2023-02-23 11:31:11.303: [86868091] Performing IP lookup 
(APC01-TYZ-obe.outbound.protection.outlook.com)
Thu 2023-02-23 11:31:11.400: [86868091] *  
D=APC01-TYZ-obe.outbound.protection.outlook.com TTL=(5) A=[104.47.110.40]
Thu 2023-02-23 11:31:11.400: [86868091] ---- End IP lookup results
Thu 2023-02-23 11:31:11.405: [86868091] Performing IP lookup (m365.ptbmi.com)
Thu 2023-02-23 11:31:11.988: [86868091] *  P=000 S=000 D=m365.ptbmi.com 
TTL=(60) MX=[bb.ptbmi.com] {202.148.25.131}
Thu 2023-02-23 11:31:11.988: [86868091] ---- End IP lookup results
Thu 2023-02-23 11:31:11.988: [86868091] rievo.niem...@m365.ptbmi.com is an 
alias for 3...@m365.ptbmi.com
Thu 2023-02-23 11:31:11.988: [86868091] Performing SPF lookup 
(APC01-TYZ-obe.outbound.protection.outlook.com / 104.47.110.49)
Thu 2023-02-23 11:31:12.395: [86868091] *  Policy: v=spf1 
include:spf.protection.outlook.com -all
Thu 2023-02-23 11:31:12.395: [86868091] *  Evaluating 
include:spf.protection.outlook.com: performing lookup
Thu 2023-02-23 11:31:12.623: [86868091] *    Policy: v=spf1 ip4:40.92.0.0/15 
ip4:40.107.0.0/16 ip4:52.100.0.0/14 ip4:104.47.0.0/17 ip6:2a01:111:f400::/48 
ip6:2a01:111:f403::/49 ip6:2a01:111:f403:8000::/50 ip6:2a01:111:f403:c000::/51 
ip6:2a01:111:f403:f000::/52 include:spfd.protection.
Thu 2023-02-23 11:31:12.623: [86868091] *    Evaluating ip4:40.92.0.0/15: no 
match
Thu 2023-02-23 11:31:12.623: [86868091] *    Evaluating ip4:40.107.0.0/16: no 
match
Thu 2023-02-23 11:31:12.623: [86868091] *    Evaluating ip4:52.100.0.0/14: no 
match
Thu 2023-02-23 11:31:12.623: [86868091] *    Evaluating ip4:104.47.0.0/17: match
Thu 2023-02-23 11:31:12.623: [86868091] *  Evaluating 
include:spf.protection.outlook.com: match
Thu 2023-02-23 11:31:12.623: [86868091] *  Result: pass
Thu 2023-02-23 11:31:12.623: [86868091] ---- End SPF results
Thu 2023-02-23 11:31:12.623: [86868091] --> 250 2.1.0 Sender OK
Thu 2023-02-23 11:31:12.623: [86868091] <-- RCPT TO:<n...@m365.ptbmi.com>
Thu 2023-02-23 11:31:12.646: [86868091] --> 530 5.7.0 Authentication required
Thu 2023-02-23 11:31:12.842: [86868091] <-- QUIT
Thu 2023-02-23 11:31:12.842: [86868091] *  Socket error 10054 - Connection was 
reset by the other side!
Thu 2023-02-23 11:31:12.842: [86868091] SMTP session terminated (Bytes in/out: 
787/4053)
Thu 2023-02-23 11:31:12.842: ----------



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