How to read exim log?

Question

Exim

Good afternoon.
Tell me how to read the Exim log?
There are sawdust in my head, I don’t understand anything at all.

2019-12-17 06:35:24 no host name found for IP address 185.234.218.210
2019-12-17 06:35:27 dovecot_login authenticator failed for (User) [185.234.218.210]: 535 Incorrect authentication data ([email protected])
2019-12-17 06:35:55 1ih3ba-0006Zy-CM H=okorderclub.com [204.11.56.48] Connection timed out
2019-12-17 06:35:59 1ih3ba-0006Zy-CM == [email protected] <[email protected]> R=dnslookup T=remote_smtp defer (110): Connection timed out
2019-12-17 06:36:01 1ih3ba-0006Zy-CM => [email protected] <[email protected]> R=dnslookup T=remote_smtp H=mid-nl.mail.protection.outlook.com [104.47.0.36] X=TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256 CV=yes C="250 2.6.0 <[email protected]> [InternalId=21247203214440, Hostname=VI1PR08MB3280.eurprd08.prod.outlook.com] 174960 bytes in 0.384, 444.537 KB/sec Queued mail for delivery"
2019-12-17 06:36:03 1ih3ba-0006Zy-CM H=postduif.natuurpark.nl [212.79.243.200] Connection timed out
2019-12-17 06:36:04 1ih3ba-0006Zy-CM == [email protected] <[email protected]> R=dnslookup T=remote_smtp defer (110): Connection timed out
2019-12-17 06:36:04 1ih3ba-0006Zy-CM ** [email protected] <[email protected]>: retry timeout exceeded
2019-12-17 06:36:04 1ih3ba-0006Zy-CM ** [email protected] <[email protected]>: retry timeout exceeded
2019-12-17 06:36:04 1ih3ba-0006Zy-CM ** [email protected] <[email protected]>: retry timeout exceeded
2019-12-17 06:36:04 WARNING: purging the environment.
 Suggested action: use keep_environment and add_environment.

Answer 1

https://www.lissyara.su/doc/exim/4.62/log_files/ there is even a description in Russian