SSL error not sending email

Hi guys,

these days with irregular intervals from SSL error on the mail client.
gives it for several dozen times, or two or three times, continuing to try again you can send the email. It is very frustrating.

the error occurred more and more frequently after the update.

I post the logs:

2020-07-07 14:39:27.984639500 [PROTOCOL] [0552F354-005B-48CD-9AF0-5D65041432E2] [core] S: 250 SIZE 27262976

2020-07-07 14:39:27.985751500 [DEBUG] [0552F354-005B-48CD-9AF0-5D65041432E2] [core] running disconnect hook in stats plugin

2020-07-07 14:39:27.990306500 [DEBUG] [0552F354-005B-48CD-9AF0-5D65041432E2] [core] running disconnect hook in log plugin

2020-07-07 14:39:27.993421500 [NOTICE] [0552F354-005B-48CD-9AF0-5D65041432E2] [core] disconnect ip=192.168.100.7 rdns=NXDOMAIN helo=[192.168.1.106] relay=Y early=N esmtp=Y tls=N pipe=N errors=0 txns=0 rcpts=0/0/0 msgs=0/0/0 bytes=0 lr="" time=0.066

2020-07-07 14:39:28.001867500 [DEBUG] [-] [watch] guard

2020-07-07 14:39:28.001928500 [DEBUG] [-] [watch] pass=whitelisted

2020-07-07 14:39:29.993947500 [DEBUG] [-] [core] addOCSP: not available

2020-07-07 14:39:30.011636500 [DEBUG] [1XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [core] running lookup_rdns hook in data.uribl plugin

2020-07-07 14:39:30.012178500 [DEBUG] [1XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [core] hook=lookup_rdns plugin=asn function=lookup_via_dns params="" retval=CONT msg=""

2020-07-07 14:39:30.022314500 [DEBUG] [-] [watch] guard

2020-07-07 14:39:30.022329500 [DEBUG] [-] [watch] pass=whitelisted

2020-07-07 14:39:30.044923500 [DEBUG] [-] [core] Upgrading to TLS

2020-07-07 14:39:30.049484500 [DEBUG] [-] [core] SNI servername: mail.labnetwork.it

2020-07-07 14:39:30.065072500 [PROTOCOL] [11XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [core] S: 250 STARTTLS

2020-07-07 14:39:30.127175500 [DEBUG] [-] [core] TLS secured.

2020-07-07 14:39:30.129304500 [INFO] [1XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [core] hook=unrecognized_command plugin=tls function=upgrade_connection params=STARTTLS retval=OK msg=""

2020-07-07 14:39:30.161942500 [PROTOCOL] [1XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [core] S: 250 AUTH PLAIN LOGIN

2020-07-07 14:39:30.163766500 [DEBUG] [1XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [core] running unrecognized_command hook in auth/poste plugin

2020-07-07 14:39:30.187671500 [DEBUG] [-] [watch] auth/poste

2020-07-07 14:39:30.187687500 [DEBUG] [-] [watch] pass=OK

2020-07-07 14:39:30.189846500 [INFO] [1XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [core] hook=unrecognized_command plugin=auth/poste function=hook_unrecognized_command params=AUTH retval=OK msg=""

2020-07-07 14:39:30.190378500 [DEBUG] [-] [watch] auth/poste

2020-07-07 14:39:30.190422500 [DEBUG] [-] [watch] pass=PLAIN

2020-07-07 14:39:30.196248500 [DEBUG] [1XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [core] running mail hook in mail_from.is_resolvable plugin

2020-07-07 14:39:30.290588500 [DEBUG] [1XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [data.uribl] (envfrom) checking: domain.com

2020-07-07 14:39:30.352149500 [DEBUG] [1XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [core] running mail hook in log plugin

2020-07-07 14:39:30.354920500 [PROTOCOL] [1XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [core] S: 250 sender <mail@domain.com> OK

2020-07-07 14:39:30.360157500 [DEBUG] [-] [watch] rcpt_database

2020-07-07 14:39:30.360205500 [DEBUG] [-] [watch] pass="recipient OK"

2020-07-07 14:39:30.371304500 [PROTOCOL] [1XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [core] S: 250 recipient <mail@destination.com> OK

2020-07-07 14:39:30.371799500 [DEBUG] [11XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [core] running data hook in limits plugin

2020-07-07 14:39:30.374610500 [PROTOCOL] [1XX885XX-XXX8-4XXA-9313-CC4XXXXXXXXX] [core] S: 354 go ahead, make my day

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many times this error is repeated:

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