Skip to main content

Technical Support

Email Delivery

Soft vs. Hard Bounces
Set Up Custom Domain Authentication: DKIM and SPF
Anti-Spam Requirements for Email
Use Send Time Optimization
The Importance of Permission
About Bounces
Add an Unsubscribe Link
About Email Authentication
About Compliance for Email Marketing
My campaign looks bad in Outlook.
My subscribers aren't receiving my campaigns
About Gmail Tabs
Examples of Compliant and Non-Compliant Lists
About Spam Filters
Gmail is clipping my email
My campaigns are going to spam folders.
Limitations of Free Email Addresses
About Omnivore
Schedule or Pause a Regular Email Campaign
Troubleshooting Test Email Campaigns
About Abuse Complaints
About Fake Signups
I know this email address is valid, but it hard bounced.
Why We Can't Stop or Edit Sent Campaigns
Cancel a Campaign
My Campaign From Name Shows "mcsv.net"
About Company Whitelisting
About Blacklists
About Safe Sender Lists
How Legitimate Marketers Can Prevent Spam Complaints
Find Email Headers and Source Code
View Bounce Reasons
When Email Addresses Go Stale
About Mailchimp Delivery Rates
Avoid Outlook's Junk Folder
Why We Require an Unsubscribe Link
View Abuse Complaints
Schedule Batch Delivery
About Suspension
About Direct Complaints
My subscriber received multiple copies of my campaign
My campaign links trigger "possible fraud" alerts
Causes of High Bounce Rates
About Forwarded Campaigns and Unsubscribes
Using Ads in Email Marketing Campaigns
Why We Verify Imported Contacts
About Delivery Insights
My unsubscribe rate is really high.
About Email Firewalls
About Bounce Suspension
About Unsubscribe Suspension
About Spamtraps
About Bounce Warnings
How Throttling Improves Deliverability
About Prohibited Content
About List Suspension
I Received Spam from Mailchimp
About Abuse Warnings
Tips for Daily Senders
How Mailchimp Prevents and Handles Abuse
About Accidental Abuse Complaints
About Abuse Suspension
How Constant Contact and Mailchimp Manage Bounces
My To: field breaks in Outlook.
I'm getting bounce reports when people try to sign up to my list.
What are Challenge-Response Filters?