Is this a postfix problem? Receiving mail from cellphone

[Bruce Dawson]

Dan Coutu wrote:
> This is a RHEL server running postfix.
>
> Sending email to the server from my cell phone is giving an error and I 
> don't understand why. I'm hoping that someone here can shed light on it 
> for me.
>
> Here's the mail log entries that show the problem:
>
> Dec  1 01:55:27 ec2-75-101-156-55 postfix/smtpd[31695]: connect from 
> 150.sub-69-78-129.myvzw.com[69.78.129.150]
> Dec  1 01:55:27 ec2-75-101-156-55 postfix/smtpd[31695]: NOQUEUE: reject: 
> RCPT from 150.sub-69-78-129.myvzw.com[69.78.129.150]: 450 4.7.1 
> <njbrspamp5.vtext.com>: Helo command rejected: Host not found; 
> from=<8023094781 at VTEXT.COM> to=<register at celltography.com> proto=ESMTP 
> helo=<njbrspamp5.vtext.com>
>   

It appears that njbrspamp5.vtext.com doesn't exist according to:

jbd at bruce:~$ host njbrspamp5.vtext.com
Host njbrspamp5.vtext.com not found: 3(NXDOMAIN)
jbd at bruce:~$ host vtext.com
vtext.com has address 69.78.67.39
vtext.com has address 69.78.128.199
vtext.com mail is handled by 50 smtp-bb.vtext.com.
vtext.com mail is handled by 50 smtp-sl.vtext.com.

> Dec  1 01:55:32 ec2-75-101-156-55 postfix/smtpd[31695]: disconnect from 
> 150.sub-69-78-129.myvzw.com[69.78.129.150]
>
> Thanks for any help or pointers to resolving this.
>
> Dan
So the problem appears to be with either:

    * vtext.com, which doesn't have an entry for njbrspamp5
    * Your cell phone settings, which seem to be logging into the SMTP
      server w/HELO njbrspamp5.vtext.com
    * Verizon Wireless' problem as they are probably forwarding the
      email from your phone.

--Bruce