Tag: Deliverability
Why Did My Messages to Gmail Bounce With Error 550, “5.7.26”, “This message does not have authentication information or fails to pass authentication checks (SPF or DKIM)”?
Starting on February 1, 2024, Google has imposed new requirements on bulk senders, including a…
Should I Use a Dedicated IP Address or Shared IP Pool to Send Email?
Should you use a Dedicated IP address or a shared IP pool to send your…
How Can I Keep My Recipients From Unsubscribing?
Nobody likes their users to unsubscribe, it feels like a rejection. They don’t like something…
What is DKIM?
DKIM, short for Domain Keys Identified Mail, is an email authentication technology used to help…
What is SPF?
It’s not Sun Protection Factor, SPF stands for Sender Protection Framework. SPF is one of…
What is Deliverability?
It seems natural that the first frequently asked question about Deliverability is “What is Deliverability?”…
Where Can I Learn More About Deliverability?
There are many blogs and resources that you can follow to learn more about Deliverability,…