Problem :
2020-08-07 10:30:13 1k3t4r-0005i5-5i ** kristian@xx-group.com F= xxx@xx.com R=dkim_lookuphost T=dkim_remote_smtp H=mxa-0019c301.gslb.pphosted.com [185.183.28.20] I=[175.x.x.x]: SMTP error from remote mail server after initial connection: 554 Blocked – see https://ipcheck.proofpoint.com/?ip=175.x.x.x
Solusi :
- Akses web https://ipcheck.proofpoint.com lalu masukin IP yang di blok (175.x.x.x) kemudian lookup – lalu ikuti perintah selanjutnya .
- Jika ada IP lain untuk mail out nya, bisa di ganti dahulu IP public mail out nya
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