My sent email does not reach to recipients

Hi,
I can receive emails and can send as well but my sent emails do not reach to recipients from any email host like Gmail, Hotmail and so.
What I did as debug:
- Rebuild email server
- Disabling CSF and restart email services
- My email does not blacklist as I checked each time before and after sending

Note: I must mention that i use Cloudflare but all "Proxy" was disabled and used "DNS only" mode for all DNS.

Here you can see my maillog from start to send an email till the end of its process with disabled CSF and restart email services:

Jul 22 12:57:18 srv1 postfix/smtpd[16381]: connect from unknown[102.xxx.xxx.36]
Jul 22 12:57:19 srv1 postfix/smtpd[16381]: TLS SNI smtp.mysite.com from unknown[102.xxx.xxx.36] not matched, using default chain
Jul 22 12:57:19 srv1 postfix/smtpd[16381]: Anonymous TLS connection established from unknown[102.xxx.xxx.36]: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)
Jul 22 12:57:20 srv1 cbpolicyd[16338]: module=Quotas, mode=update, host=102.xxx.xxx.36, helo=[10.197.0.6], from=test@mysite.com, to=mygmail@gmail.com, reason=quota_update, policy=9, quota=6, limit=7, track=Sender:@mysite.com, counter=MessageCount, quota=1.00/200 (0.5%)
Jul 22 12:57:20 srv1 postfix/smtpd[16381]: 2C6BB15E33: client=unknown[102.xxx.xxx.36], sasl_method=PLAIN, sasl_username=test@mysite.com
Jul 22 12:57:20 srv1 postfix/cleanup[16390]: 2C6BB15E33: message-id=<2993e6b0-8c2c-265d-3435-044881d711a9@mysite.com>
Jul 22 12:57:20 srv1 opendkim[16297]: 2C6BB15E33: DKIM-Signature field added (s=default, d=mysite.com)
Jul 22 12:57:20 srv1 postfix/qmgr[16289]: 2C6BB15E33: from=<test@mysite.com>, size=1105, nrcpt=1 (queue active)
Jul 22 12:57:20 srv1 postfix/smtpd[16381]: disconnect from unknown[102.xxx.xxx.36] ehlo=2 starttls=1 auth=1 mail=1 rcpt=1 data=1 quit=1 commands=8
Jul 22 12:57:50 srv1 postfix/smtp[16391]: connect to gmail-smtp-in.l.google.com[173.194.76.26]:25: Connection timed out
Jul 22 12:58:20 srv1 postfix/smtp[16391]: connect to gmail-smtp-in.l.google.com[2a00:1450:400c:c00::1b]:25: Connection timed out
Jul 22 12:58:50 srv1 postfix/smtp[16391]: connect to alt1.gmail-smtp-in.l.google.com[142.251.9.27]:25: Connection timed out
Jul 22 12:59:20 srv1 postfix/smtp[16391]: connect to alt1.gmail-smtp-in.l.google.com[2a00:1450:4025:c03::1a]:25: Connection timed out
Jul 22 12:59:50 srv1 postfix/smtp[16391]: connect to alt2.gmail-smtp-in.l.google.com[142.250.150.27]:25: Connection timed out
Jul 22 12:59:50 srv1 postfix/smtp[16391]: 2C6BB15E33: to=<mygmail@gmail.com>, relay=none, delay=151, delays=0.63/0.02/150/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[142.250.150.27]:25: Connection timed out)
Jul 22 13:00:01 srv1 postfix/pickup[16286]: BB20415E36: uid=1001 from=<mysiteuser>
Jul 22 13:00:01 srv1 postfix/cleanup[16498]: BB20415E36: message-id=<20210722110001.BB20415E36@srv1.myemailserver.com>
Jul 22 13:00:01 srv1 opendkim[16297]: BB20415E36: DKIM-Signature field added (s=default, d=srv1.myemailserver.com)
Jul 22 13:00:01 srv1 postfix/qmgr[16289]: BB20415E36: from=<mysiteuser@srv1.myemailserver.com>, size=922, nrcpt=1 (queue active)
Jul 22 13:00:01 srv1 postfix/local[16504]: BB20415E36: to=<mysiteuser@srv1.myemailserver.com>, orig_to=<mysiteuser>, relay=local, delay=0.29, delays=0.26/0.02/0/0, dsn=2.0.0, status=sent (delivered to mailbox)
Jul 22 13:00:01 srv1 postfix/qmgr[16289]: BB20415E36: removed
Jul 22 13:00:37 srv1 postfix/pickup[16286]: 4ED8415E35: uid=0 from=<root>
Jul 22 13:00:37 srv1 postfix/cleanup[16498]: 4ED8415E35: message-id=<20210722110037.4ED8415E35@srv1.myemailserver.com>
Jul 22 13:00:37 srv1 opendkim[16297]: 4ED8415E35: DKIM-Signature field added (s=default, d=srv1.myemailserver.com)
Jul 22 13:00:37 srv1 postfix/qmgr[16289]: 4ED8415E35: from=<root@srv1.myemailserver.com>, size=721, nrcpt=1 (queue active)
Jul 22 13:00:37 srv1 postfix/pickup[16286]: 650D215E32: uid=0 from=<root>
Jul 22 13:00:37 srv1 postfix/cleanup[16498]: 650D215E32: message-id=<20210722110037.650D215E32@srv1.myemailserver.com>
Jul 22 13:00:37 srv1 opendkim[16297]: 650D215E32: DKIM-Signature field added (s=default, d=srv1.myemailserver.com)
Jul 22 13:00:37 srv1 postfix/qmgr[16289]: 650D215E32: from=<root@srv1.myemailserver.com>, size=737, nrcpt=1 (queue active)

Are you using Google Workspace (Gmail MX servers) or are you using your actual email server to send and receive?