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E-Mail / SMTP Error: [451] 4.7.1 Service unavailable - try again later
« on: September 16, 2018, 04:57:54 PM »
Hi All
I am currently on Scaleway cloud.
My problem is SMTP Error
SMTP Error: [451] 4.7.1 Service unavailable - try again later
They said they did not block SMTP port. When I check through SSH, the port are opened.
But when I check using WordPress SMTP they said block by firewall.
I have no issue receiving emails.
For those of you have not used Scaleway, they assign an internal IP address and 1 public IP address for your cloud.
Could this be because the server IP is using NAT?
I use cwp panel rDNS Checker and the national IP can't resolve to any hostname because using internal IP.
O currently use another cheaper cloud provider for emails because of this issue. (Installed CWP Panel)
Anyone have a solution or workaround?
Note:
1.Server IP is NAT IP address.
2.Share IP is using Public IP Address.
I am currently on Scaleway cloud.
My problem is SMTP Error
SMTP Error: [451] 4.7.1 Service unavailable - try again later
They said they did not block SMTP port. When I check through SSH, the port are opened.
But when I check using WordPress SMTP they said block by firewall.
I have no issue receiving emails.
For those of you have not used Scaleway, they assign an internal IP address and 1 public IP address for your cloud.
Could this be because the server IP is using NAT?
I use cwp panel rDNS Checker and the national IP can't resolve to any hostname because using internal IP.
O currently use another cheaper cloud provider for emails because of this issue. (Installed CWP Panel)
Anyone have a solution or workaround?
Note:
1.Server IP is NAT IP address.
2.Share IP is using Public IP Address.
Pages: [1]
