|SharpSpring strives to maintain a secure email system for all senders.
By limiting potential abuse, SharpSpring can provide high email deliverability for all good senders.
This article will provide information on the results of abuse.
One way SharpSpring maintains security is by proactively checking the sending domain an email is about to use. Consider the sending address From:firstname.lastname@example.org. SharpSpring would check the example.com domain.
While extremely uncommon, you may receive in-application messaging if the sending domain can not be used. These domains are considered as blocked.
Some examples of addresses that may be flagged and blocked include:
- Domains that may be used for phishing or fraud
- SharpSpring.com domains (or other domains that SharpSpring uses as a company)
- Disposable email addresses
- Domains with DMARC rejection policies
However, any domains that have been verified and authenticated may be used without concern.
Free email providers—such as Gmail, Yahoo!, and Outlook—are forbidden domains on SharpSpring. As you do not own the domain, if you were to send from SharpSpring from a Gmail, Yahoo!, or Outlook address, it would appear that you have the authority to send on behalf of Gmail, Yahoo!, or Outlook. You do not. Since you cannot authenticate that you have permission or authority, it can cause deliverability and compliance issues. To prevent these issues, SharpSpring forbids sending from these domains.
You can engage in limited bulk sending through Mail Sync. When enabled, your Smart Mails will be sent through Simple Mail Transfer Protocol (SMTP). However, you cannot engage in regular bulk mail sending to your full lists. This is due to the fact that you cannot set up DomainKeys Identified Mail (DKIM) on these accounts.
Refer to the following help articles for more information on SMTP and DKIM:
Disposable domains are temporary email addresses most often used to avoid receiving mail in an actively monitored inbox. Temporary, in this case, means that the addresses are set to expire or otherwise self-destruct after a set amount of time—sometimes as soon as only a few minutes after the disposable domain has been created. Initially, emails will be delivered, but they will not be monitored. Sending to disposable domains is considered poor practice. This is because that, over time, the email address will expire and cause bounces. Emails bouncing will negatively impact your sending reputation.
Refer to the following external information for a list of disposable domains and how list verification and cleaning services can identify them: