![Personalization 2.0 in 2020 — How to gain up to 100% deliverability?](https://proofy.io/wp-content/uploads/2019/12/writing-proofy-personalization-300x200.jpg)
Personalization 2.0 in 2020 — How to gain up to 100% deliverability?
The development of technologies keeps growing, and companies become more innovative in attraction customers. Now they choose multiple channels and new trends to…
![7 Ways how to apologize in an email: How to write letter of apology to a customer?](https://proofy.io/wp-content/uploads/2018/09/apologize_email-300x200.jpg)
7 Ways how to apologize in an email: How to write letter of apology to a customer?
Why Can Writing apology business letters Be Challenging? It is not enough just to know “how”. In some cases, you need to take efforts to admit you are wrong.…