We cannot guarantee that your company's mail servers will accept emails from us (for your survey) - Different companies have different algorithms and policies as to what is considered as SPAM and what is not. Please contact your internal IT staff and ask them about their ANTI-SPAM policies.
Yes. Following is the necessary information for our domain QuestionPro.com
|Data center||Outbound mail servers|
|Data center||Subnet mask||Range|
|United States||18.104.22.168/26||22.214.171.124 -> 126.96.36.199|
|United States||188.8.131.52/24||184.108.40.206 -> 220.127.116.11|
|United States||18.104.22.168/24||22.214.171.124 -> 126.96.36.199|
|United States||188.8.131.52/25||184.108.40.206 -> 220.127.116.11|
|Europe||18.104.22.168/24||22.214.171.124 -> 126.96.36.199|
|Canada||NA||188.8.131.52, 184.108.40.206, 220.127.116.11, 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11|
|Australia||NA||18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11, 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206|
|UAE (ae)||NA||220.127.116.11, 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11, 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52|
No provider can guarantee email delivery. ISP's have different rules about SPAM detection based on content, subject and how many of their users are reporting emails as SPAM.
The best way to make sure that your specific survey invitation is not blocked as SPAM is to pre-test it by sending an email invitation to different free email addresses from hotmail, yahoo, gmail, etc.
An SPF record is a type of Domain Name Service (DNS) record that identifies which mail servers are permitted to send email on behalf of your domain. The purpose of an SPF record is to prevent spammers from sending messages with forged From addresses at your domain.The SPF record that needs to be added is provided as:
|Data center||SPF record|