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SMTP Error (550): Failed to set sender

Posted: Sat Nov 04, 2017 7:18 pm
by juddy
Hello,

I've searched all possible articles and sites, but nothing has worked out. Basically, I can receive e-mails, but whenever I try to send an e-mail I get this error

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SMTP Error (550): Failed to set sender "[email protected]" (Access denied - Invalid HELO name (See RFC2821 4.1.3)).
I followed this post viewtopic.php?f=12&t=15345 and the error disappeared. However, I still wasn't able to receive my e-mails.

My host is set to: fastlisting.org
Smtp.log:

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[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Recv: 220 fastlisting.org ESMTP Exim 4.89 Sat, 04 Nov 2017 19:15:56 +0000
[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Send: EHLO 45.76.136.119
[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Recv: 250-fastlisting.org Hello localhost [127.0.0.1]
[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Recv: 250-SIZE 52428800
[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Recv: 250-8BITMIME
[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Recv: 250-PIPELINING
[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Recv: 250-AUTH PLAIN LOGIN
[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Recv: 250-CHUNKING
[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Recv: 250-STARTTLS
[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Recv: 250 HELP
[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Send: MAIL FROM:<[email protected]>
[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Recv: 550 Access denied - Invalid HELO name (See RFC2821 4.1.3)
[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Send: RSET
[04-Nov-2017 19:15:56 +0000]: <nur7sls9> Send: QUIT
Any ideas?

Thanks

Re: SMTP Error (550): Failed to set sender

Posted: Sun Nov 05, 2017 6:00 pm
by mehargags
Name your OS and version.

What exactly is the problem ?

Can you send email to outside world ?

Can you receive email from outside world ?

Re: SMTP Error (550): Failed to set sender

Posted: Sun Nov 05, 2017 7:40 pm
by juddy
CentOS 7

I can't send e-mails to others. I can only send emails to myself(Perhaps, the localhost).

Nope.

Yes I can receive e-mails from others.

Re: SMTP Error (550): Failed to set sender

Posted: Mon Nov 06, 2017 9:52 am
by mehargags
Can you ping the outside world ?

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ping google.com
ping yahoo.com

Re: SMTP Error (550): Failed to set sender

Posted: Tue Nov 07, 2017 5:38 am
by juddy
Yes. It's working just fine. I run my own web server on the machine.