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Ndlovumm's avatar
Ndlovumm
Icon for Cirrus rankCirrus
Feb 24, 2020

SMTP 530 Error

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

 

application delivery
BIG-IP
TMSH
  • NUT2889's avatar
    NUT2889
    Icon for Cirrostratus rankCirrostratus
    Feb 24, 2020

    Hi,

     

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

      • NUT2889's avatar
        NUT2889
        Icon for Cirrostratus rankCirrostratus
        Feb 24, 2020

        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.

  • Mayur_Sutare's avatar
    Mayur_Sutare
    Icon for MVP rankMVP
    Feb 24, 2020

    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

     

     

    • Ndlovumm's avatar
      Ndlovumm
      Icon for Cirrus rankCirrus
      Feb 24, 2020

      May you please advise which credentials are you reffering to?