Emails suspended

[Dan_Stevens_]

I noticed a fairly high bounce rate for a recent email campaign.  Some of the email suspended reasons include:

• 550 bl.spamcop.net Blocked - see http://www.spamcop.net/bl.shtml?199.15.214.48
• 550 Sending host is blacklisted at bl.spamcop.net.
• Sorry, your email address 857-NHG-455.0.1529.0.0.1270.7 246023@em-sj-77.mktomail.com has been blacklisted.

Are others that use Marketo's shared IP address experiencing similar issues?

[Josh_Hill13]

You might check with Support as your IP may have been blacklisted, or possibly just your domain.

Be sure to clean up your spam traps, etc and hard bounces before the next email wave. There are plenty of articles on this.
http://www.slideshare.net/jdavidhill/marketo-email-reputation-management