sendmail - reason: 550 5.1.1 User unknown error

Hello,

I'm using a Linode instance and am using sendmail to send emails from my machine

to various users hosted on the linode machine.

i have 2 domains

venuslabs.co.in and

thechaicart.com

both are hosted on my linode machine.

i have a user

admin (on both of them).

hence the email id would be

admin@venuslabs.co.in

When i use the sendmail on command line to send email from the linode machine

it gives an error message that

reason: 550 5.1.1 <admin@venuslabs.co.in> User unknown error

Any help is appreciated in resolving this issue.

Thanks.

Yashesh

1 Reply

> i have a user

admin (on both of them).

  • Where are these 'admin' users set up?
  • Did you add them to your mail server?

  • Do you have a webmail UI configured? If so, can you log in as each 'admin' user separately?

  • When you use a non-web mail client, can it connect to both 'admin' users to send or receive mail?

Reply

Please enter an answer
Tips:

You can mention users to notify them: @username

You can use Markdown to format your question. For more examples see the Markdown Cheatsheet.

> I’m a blockquote.

I’m a blockquote.

[I'm a link] (https://www.google.com)

I'm a link

**I am bold** I am bold

*I am italicized* I am italicized

Community Code of Conduct