The digital landscape has brought with it the inevitable evolution of cyber threats, the most prevalent of which are phishing attacks. This type of cyber threat predominantly uses email as a deceptive tool to mislead recipients into divulging confidential information. This blog post will elucidate various 'phishing email types', the diverse tactics used by cybercriminals, and the substantial measures needed for optimal cybersecurity.

1. Deceptive Phishing

The most common type among phishing email types is deceptive phishing, where cyber-crooks impersonate a legitimate company in an attempt to steal people's personal information or login credentials. These emails typically create a sense of panic to manipulate users into responding faster, without checking the authenticity of the mail.

2. Spear Phishing

Spear Phishing is a more targeted form of phishing, where the attackers have already gathered some information about their target. The email would appear to be from a known or trusted sender, compelling the recipient to reply or click on a link.

3. CEO Fraud (Whaling)

In CEO Fraud, also known as whaling, attackers pose as the CEO or any high-ranking executive of a company and send emails to employees, typically from the finance department, to trick them into transferring funds.

4. Pharming

Rare but deadly among the phishing email types, pharming doesn't require a lure. Instead, attackers compromise a DNS server or a user's host file and redirect users to a fraudulent website even if they type the correct URL.

5. Clone Phishing

Here, a legitimate email with a link or an attachment is cloned and replaced with malicious content. Attackers then resend it from an email address formatted to appear like it's coming from the original sender.

6. 419 Scams

This is a straightforward scam where the victim is promised huge wealth or inherited in exchange for a small fee. This scam is named after the 419 section of Nigeria’s Criminal Code, which this scam violates.

7. Snowshoeing

In Snowshoeing, the attackers spread out spam across several IP addresses and domains to avoid detection, much like the weight distributed over a large area by a snow shoe.

Cybersecurity Measures

Understanding the threats is half the battle. Here are some measures to counter-attack:

• Email Filtering Solutions: Implement email filters that block malicious emails, attachments, and URLs.
• Antivirus Software: Use reliable antivirus software to protect against known malware.
• Security Awareness Training: Educate your team members about different phishing email types and tactics used by cybercriminals.
• Multi-factor Authentication: Implementing this adds an extra layer of protection even if the attacker has the login credentials.

In conclusion, phishing scams leverage human error, making it one of the most significant threats to individuals and corporations' cybersecurity. Understanding different 'phishing email types' is a necessary first step towards effective cybersecurity. However, the fight against phishing is an ongoing one and requires continuous vigilance, education, and investment in robust, multipronged cybersecurity measures.