E-mail delivery problem from my server to gmail account?

Question

I have a USA based Linux web hosting server. There one IP I'm using shared for all domains. If I sent email from my server to any gmail account the email not receiving gmail account. I have contact with the data center they have replied the below answer:

The message Gmail is providing is:
MTP error from remote mail server after end of data: host alt4.gmail-smtp-in.l.google.com [209.85.143.27]: 421-4.7.0 [IP: xxx.xxx.xxx.xxx 10] Our system has detected an unusual rate of\n421-4.7.0 unsolicited mail originating from your IP address. To protect our\n421-4.7.0 users from spam, mail sent from your IP address has been temporarily\n421-4.7.0 blocked. Please visit http://www.google.com/mail/help/bulk_mail.html\n421 4.7.0 to review our Bulk Email Senders Guidelines.

Can anyone help me to fix this problem?

Answer 1

You need to contact the isp who gave you the ip that's blocked and request that they get it unblocked.



Gmail is blocking you/that ip because they think you're spamming.

Answer 2

I am from smtp.com, a service provider for email delivery. Your email is being flagged as too spammy either by gmail filters or user complaints. There is no unblock capability with gmail. In 4 -24 hours they will release your IP and allow you to send again. HOWEVER, if you do not fix your spammy content, you will end up in trouble again with gmail.



So it is critical you run your email content through a filter to identify where your content issues are so you can fix them before sending. Usually such functionality is built into your campaign software. There are also 3rd parties who can provide you with a tool, like spam assassin. Hope that gets you going in a direction of good sender practices.

Answer 3

Yahoo email has always been the slowest to me. Sometimes my emails don't come through until the next day!!! I have an email account with AOL and to me it is the fastest.