Hello.
After updating StandardERP server to last build 8.5 2022-10-22 (build 85480648) SMTP connection to local mail server was broken. Logs not tell anything, but I installed one old SERP version 8.5 2021-06-08 (build 85380088) and retrieve some logs.

2023-01-14 17:55:51 /THREAD(4) SMTP connecting to 192.168.1.8:25
2023-01-14 17:55:51 /THREAD(4) SMTP connected
2023-01-14 17:55:51 /THREAD(4) SMTP starting TLS

2023-01-14 17:55:51 /THREAD(1) sockno=3,fd=117:SSL:192.168.1.8:25 SSL CERT certificate verification failed with error X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT (18)
2023-01-14 17:55:51 /THREAD(1) sockno=3,fd=117:SSL:192.168.1.8:25 SSL CERT chain 0 ** ERROR >> claims to be /C=CA/L=Toronto/O=ClearOS/OU=ClearOS/CN=system.lan/emailAddress=noreply@localhost cert expires 2025-07-12 issued by /C=CA/L=Toronto/O=ClearOS/OU=ClearOS/CN=system.lan/emailAddress=noreply@localhost
2023-01-14 17:55:53 /THREAD(12) DoUpdateDatabaseRestrictions magic=25297, restrictf=2, shutdownf=2
2023-01-14 17:55:53 SYSTEM Sending Email from Samuel Jaffacake
2023-01-14 17:55:57 Requesting Lookup address
2023-01-14 17:55:57 SYSTEM Sending Email from Samuel Jaffacake
2023-01-14 17:56:01 /THREAD(4) SMTP TLS failed async: 1 ssl: 1 state: 7

As I understand problem with OpenSSL checks this certificate and that it is self signed.

Can I solve this problem without changing certificate?