550 "The Recipient Cannot Be Verified"
Jan 14, 2007
I've had a VPS for a couple of days, (Linux, cPanel), but however I try to set up email on the one account so far put on the server, all I get in response to sending test emails to it is
Quote:
550 "The Recipient Cannot Be Verified".
My host can send emails to the address and I receive them.
My host tells me that I need to switch off "Sender Verify" on the server relaying to the VPS, but surely that is not a good idea as it will reduce the spam protection that this feature provides?
What could cause this to happen?
I have not experienced this problem any of my other servers.
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Apr 15, 2013
I downloaded the zip file httpd-2.4.4-win32.zip and ran winmd.exe. I checked the checksum value against those in the file online and they did not match.
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Jul 1, 2007
I recently looked at my secure and mesaages log and have been getting a lot of failed SSH root login attempts. So I thought I better do something about it.
Ideally I want to allow SSH login from just 3 remote public IP's, and block all others from even trying
How would you go about implementing this?
I have tried using IPTables, but I think im getting the rule wrong somewhere.
Here is what I have:
Code:
## Access to SSH from Pre-approved IP Addresses ONLY ##
iptables -I INPUT 1 -p tcp --dport 22 -s 123.123.123.123 -j ACCEPT
iptables -I INPUT 2 -p tcp --dport 22 -s 123.123.123.124 -j ACCEPT
iptables -I INPUT 3 -p tcp --dport 22 -s 123.123.123.125 -j ACCEPT
iptables -I INPUT 4 -p tcp --dport 22 -s 0.0.0.0 -j DROP
However this still lets me login from IPs not in the list above?
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Nov 14, 2006
Hi,
I can receive emails from qmail but couldn't send out any... I checked my mail logs and found:
Nov 14 17:53:20 server relaylock: /var/qmail/bin/relaylock: mail from 11.22.333.444:37277 (server.domain.com)
Nov 14 17:53:23 server qmail: 1163498003.114915 delivery 708: failure: 11.22.333.444_does_not_like_recipient./Remote_host_sai$
Nov 14 17:53:19 server qmail-queue[11421]: mail: all addreses are uncheckable - need to skip scanning (by deny mode)
11.22.333.444 is my server ip. Why Do I got this error and how to fix it??
Anyone help please greatly appreciate.
Thank you
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Feb 16, 2008
I have just got a Dedicated Server and everything is running fine except the mail (outbound). Some times it sends mail fine but most of the time I am getting a bounce back stating the address cannot be found (Which I know is untrue because it is my main email address). It is not only happening on my address but a few others I have checked as well.
Here is what I get when I get a bounce back
==========================================
Could not deliver message to the following recipient(s): ......
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Apr 1, 2008
i am getting error when i trying to send mail out to external email address like gmail, hotmail, msn, yahoo
The error says 550 invalid recipent : user@domain.com
so to make sure that the mail server is working i tried sending mail to local address
which is local@nameoftheserver.com it works but when i try to send mail to external address it get error listed above.
so i added my email sales@domainname.com to gmail to test whether the mail server is working correctly from gmail i can send email from sales@domainname.com and recieve both but when i try that from my server it doesnot work
my server is offshore and i am using enom mail server to send email?
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Nov 28, 2008
how to set up exim on a bare linux server to not allow more than one recipient per command?
I don't want to allow, for example, mail lists.
Example of exim command
2008-11-19 20:14:11 [2135] cwd=/path/to/account 3 args: /usr/sbin/sendmail -t -i
2008-11-19 20:14:11 [2135] 3L5JXP-0001bH-MF <= apache@server.com U=apache P=local S=1091 T="Bla bla" from <apache@server.com> for mail1@ee.com mail2@dd.com mail3@dfffg.com ETC ETC ETC
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Jan 18, 2015
I have some email problem
CentOS 6.6 (Final)
Plesk version12.0.18 Update #29, last updated at Dec 22, 2014 03:39 AM
When sent mail to all @nblobe.com I got smtp 550 rejected
See log below:
Jan 18 10:55:12 server2 postfix/smtpd[3498]: NOQUEUE: reject: RCPT from localhost[::1]: 550 5.1.1 <jcree@nblobe.com>: Recipient address rejected: User unknown in virtual mailbox
table; from=<mail@server2.888.com> to=<jcree@nblobe.com> proto=ESMTP helo=<webmail.server2.888.com>
From webmail.nblobe.com I can send mail but they do not delivered, but I can receive mail...
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Jul 27, 2006
I was looking at my qmail queue using qmHandle and noticed that one of the emails sitting in the queue was simply there because of a blatant typo in the email address.
Therefore, I went to the appropriate file in
/var/qmail/queue/mess/*/*
and edited the file to reflect the new email address.
Does this work at all, or should the user resend the email? I naturally don't want to look at email that isn't intended for me (which is why qmHandle is a useful tool -- because only headers are available) nor do I want someone to know that I know their email is sitting in the queue (because they might assume that I *am* reading their email even though I'm not!)
I tried qmHandle -a to no avail; the email address has been edited as per my changes, but the email is still just sitting there.
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