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SMTP 530 Error

Ndlovumm
Altocumulus
Altocumulus

Has anyone encountered error 530 on smtp?

I have configured smtp on my big-ip but when i run a test mail I'm getting the below error message

 

[<-] 220 host1.mic.co.za Microsoft ESMTP MAIL Service ready at Mon, 24 Feb 2020 11:08:26 +0200

[->] HELO host1.mic.co.za

[<-] 250 host2.mic.co.za Hello [172.172.172.120]

[->] MAIL FROM:<root@Big-ip.mic.co.za>

[<-] 530 5.7.1 Client was not authenticated

ssmtp: 530 5.7.1 Client was not authenticated

 

5 REPLIES 5

NUT2889
Cirrostratus
Cirrostratus

Hi,

 

Sometimes SMTP server require authentication from client (BIG-IP). Have you configure username and password on BIG-IP?

Hi NUT2889

 

Which credentials are you reffering to?

Hi,

 

Let you imagine when you need to send email from desktop application to your email server. You need to login by your email account right. For BIG-IP or other client connect with SMTP server has the same thing.

Normally SMTP 530 error occurs due to below issues,

 

  1. Invalid Authentication (wrong login creds)
  2. Invalid recipient's mail
  3. Blacklisted/Blocked IP Address

 

Also error code 530 implies 530, Must issue a STARTTLS command first. Encryption required for requested authentication mechanism.

 

 

Hope it helps!

 

Mayur

 

 

May you please advise which credentials are you reffering to?