On 19/03/21 09.36, [email protected] wrote:
> Mohon bantuan dan solusinya terkait transkrip dibawah ini :
> 
>  
> 
> Fri 2021-03-19 09:29:16.640: 08: MTA-STS policy for gmail.com found in cache
> Fri 2021-03-19 09:29:16.640: 08: *  version: STSv1
> Fri 2021-03-19 09:29:16.640: 08: *  mode: enforce
> Fri 2021-03-19 09:29:16.640: 08: *  mx: gmail-smtp-in.l.google.com
> Fri 2021-03-19 09:29:16.640: 08: *  mx: *.gmail-smtp-in.l.google.com
> Fri 2021-03-19 09:29:16.640: 08: *  max_age: 86400
> Fri 2021-03-19 09:29:27.081: 03: --> EHLO office.swadayagraha.com
> 
> Fri 2021-03-19 09:29:27.302: 02: <-- 250-mx.google.com at your service,
> [119.252.161.210]
> Fri 2021-03-19 09:29:27.302: 02: <-- 250-SIZE 52428800
> Fri 2021-03-19 09:29:27.302: 02: <-- 250-8BITMIME
> Fri 2021-03-19 09:29:27.302: 02: <-- 250-ENHANCEDSTATUSCODES
> Fri 2021-03-19 09:29:27.302: 02: <-- 250 SMTPUTF8


Ini masalah di koneksi yang memblock/filter STARTTLS protocol.
Hubungi ISP (lintasarta.net.id) untuk tidak melakukan filter/blocking terhadap
protocol STARTTLS di outgoing tcp port 25 (smtp port 25).

Koneksi ke server gmail.com mestinya seperti ini.

$ telnet gmail-smtp-in.l.google.com 25
Trying 172.217.194.26...
Connected to gmail-smtp-in.l.google.com.
Escape character is '^]'.
220 mx.google.com ESMTP i1si4263809pfc.318 - gsmtp
ehlo office.dutaint.co.id
250-mx.google.com at your service, [139.255.33.190]
250-SIZE 157286400
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8

Perhatikan adanya response "250-STARTTLS" disitu.

Untuk sementara, sebelum diperbaiki oleh ISP, bisa non aktifkan MTA-STS 
requirement.

http://help.altn.com/mdaemon/en/ssl_starttls-required-list_2.html

[ ] Enable REQUIRETLS (RFC 8689)

[ ] Enable MTA-STS (RFC 8461)

-- 
syafril
--------
Syafril Hermansyah

MDaemon-L Moderator, run MDaemon 21.0.1 64bit
Mohon tidak kirim private mail (atau cc:) untuk masalah MDaemon.

Tell me and I forget. Teach me and I remember. Involve me and I learn.
        --- Benjamin Franklin



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