Nicolas Forni

Founder of Captain Verify, I have worked on email and mobile number verification since 2015. On this blog I write about deliverability, contact list hygiene, mailbox provider rules and SMS marketing. Practical articles, written for marketing teams that send every week.

When an email campaign does not produce the expected results, SMTP error codes can often provide very useful answers. Indeed, these codes generated during the sending or delivery of emails…

Woman smiling during a collaborative office meeting.

Relationship marketing changes the relationship with prospects and customers. It’s not just about saying “Hello” and “Goodbye”; it’s about getting to know people, understanding their needs, sharing moments, and building…

Frustrated man surrounded by email alerts

6.7% of commercial emails end up in the spam folder globally, for an average inbox placement rate of 84% (Validity, 2025). Since February 2024, Google and Yahoo have rejected any…

Woman thinking in modern office.

In the context of email sending, one of the least visible yet critical aspects is understanding SMTP response codes. These codes, exchanged between servers during message transmission, can provide very…

Teamwork at a creative office workspace

As with each year-end, we offer you the chance to anticipate the following year by providing key dates you shouldn’t miss, as well as some suggestions for your future marketing…

commercial sms

Very popular with marketing experts, commercial SMS is an increasingly supervised practice by French law and operates according to well established rules. Moreover, since the beginning of this year, new…

email personalization

We can never repeat it enough, personalization is essential in writing your marketing emails today. It is even one of the major trends of 2022 with the use of AI…

email marketing 6 trends 2022

Dominant channel in the field of marketing, emailing is a must for today’s brands and businesses. A phenomenon widely accelerated by the COVID pandemic which prompted specialists to find solutions…