Pak ini Socket Error kenapa ya ? apakah problem disisi saya atau recipientnya ?

05-29 11:07:06.267: 01: [02619852] REMOTE message: pd9001000000129.msg
Mon 2023-05-29 11:07:06.267: 01: [02619852] *  Session 02619852; child 0001
Mon 2023-05-29 11:07:06.268: 01: [02619852] *  From: [email protected]
Mon 2023-05-29 11:07:06.268: 01: [02619852] *  To: [email protected] Mon 2023-05-29 11:07:06.268: 01: [02619852] *  Subject: CV Bu Herlih dan Christian Salim Mon 2023-05-29 11:07:06.268: 01: [    02619852] *  Message-ID: <[email protected]> Mon 2023-05-29 11:07:06.268: 01: [02619852] *  Size: 767161; <e:\mdaemon\queues\remote\retry\pd9001000000129.msg> Mon 2023-05-29 11:07:06.286: 05: [02619852] Resolving MX record for combiphar.com (DNS Server: 203.142.82.222)... Mon 2023-05-29 11:07:06.310: 05: [02619852] *  P=010 S=000 D=combiphar.com TTL=(5) MX=[smtpmail.combiphar.com] Mon 2023-05-29 11:07:06.310: 05: [02619852] Attempting SMTP connection to smtpmail.combiphar.com Mon 2023-05-29 11:07:06.310: 05: [02619852] Resolving A record for smtpmail.combiphar.com (DNS Server: 203.142.82.222)... Mon 2023-05-29 11:07:06.538: 05: [02619852] * D=smtpmail.combiphar.com TTL=(5) A=[110.35.83.86] Mon 2023-05-29 11:07:06.538: 05: [02619852] Attempting SMTP connection to 110.35.83.86:25
Mon 2023-05-29 11:07:06.538: 05: [02619852] Waiting for socket connection...
Mon 2023-05-29 11:07:27.536: 04: [02619852] * Socket error 10060 - The connection timed out. Mon 2023-05-29 11:07:27.536: 05: [02619852] *  110.35.83.86 added to connection failure cache for 5 minutes Mon 2023-05-29 11:07:27.537: 01: [02619852] *  This message is 0 days old; it has 2 days left to get delivered Mon 2023-05-29 11:07:27.544: 04: [02619852] SMTP session terminated (Bytes in/out: 0/0)

Rgds,
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