Based on a consensus of experts, marketers, and documentation from various sources, LeadWizzer is likely not a legitimate service and carries significant risks. It's potentially associated with spam, disposable email addresses, and fraudulent activities. Association with LeadWizzer can damage sender reputation, negatively impact deliverability, and compromise list quality. Proactive measures like blocking, email validation, and reputation management are strongly recommended to mitigate these risks.
10 marketer opinions
Experts and email marketers across various platforms (Email Geeks, ScamAdviser, Reddit, Email Hippo, StackExchange, Talos Intelligence, Email Deliverability Experts) generally agree that LeadWizzer is a questionable service, potentially associated with disposable email addresses and even fraudulent activities. The consensus advises caution, suggesting that it may negatively impact sender reputation, email deliverability, and overall list quality.
Marketer view
Marketer from Email Geeks shares that they were involved in a USPS fraud last November and suggests to proceed with caution.
30 Aug 2022 - Email Geeks
Marketer view
Email marketer from StackExchange answers that association with services known for spam can damage domain reputation. They suggest monitoring domain health and avoiding questionable services to maintain positive reputation.
10 Feb 2023 - StackExchange
4 expert opinions
Experts across Email Geeks, Spam Resource, and Word to the Wise suggest LeadWizzer is potentially harmful. They highlight connections to spam, disposable email practices, and reputational risks. The consensus advises caution and proactive management of your reputation to avoid negative associations.
Expert view
Expert from Email Geeks responds that it looks like spam and suggests blocking it.
4 Apr 2024 - Email Geeks
Expert view
Expert from Spam Resource explains that disposable email domains are often used for malicious activities, impacting sender reputation, and recommends actively blocking and monitoring their use. The mention of "LeadWizzer" specifically in relation to questionable email practices supports this.
31 Jul 2022 - Spam Resource
4 technical articles
Documentation from Spamhaus, RFC Ignorant, ZeroBounce, and Mailjet consistently warns against the use of disposable or temporary email addresses. While not directly confirming LeadWizzer's legitimacy, they highlight that services offering such addresses are frequently linked to malicious activities, violate standards, and negatively impact email marketing efforts and deliverability.
Technical article
Documentation from RFC Ignorant states that temporary email services often violate RFC standards and create deliverability issues. The website advises against accepting sign-ups from such email addresses due to their unreliable nature and potential for abuse.
4 Mar 2023 - RFC Ignorant
Technical article
Documentation from Spamhaus explains that services offering disposable email addresses are often used for malicious purposes such as spamming and creating fake accounts. This can indicate that LeadWizzer, if it provides such services, might not be legitimate.
11 Mar 2023 - Spamhaus
Are auto warming/deliverability improvement services for email marketing sketchy?
Are B2B lead vendors' claims of opt-in leads reliable?
Are paid 'top email marketing companies' lists worth it?
How accurate are email spam testing tools and what are the alternatives?
How can I accurately verify my email list and identify potentially harmful domains?
How can I prevent cold emails from harming my domain reputation?