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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.
|Outbound Mail Servers||IP Address|
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.