![Thomas Hajdukowicz](https://images.ctfassets.net/y6oq7udscnj8/3WyZ4UsOweLXMh0TgG75Rs/dcb5c9dcbb354ac06fc84df310de4459/Thomas3.jpg?w=400&h=400&fl=progressive&q=50&fm=jpg)
Author
Thomas Hajdukowicz
Thomas Hajdukowicz is a French Content & Localization Specialist at Sinch Mailjet. He’s an expert in French culture, a history nerd, and a professional cook. He writes about email marketing tips and best practices that can help our French audience take their emails to the next level.
Latest stories by Thomas Hajdukowicz
![Hermes and Artemisa paint some tags](https://images.ctfassets.net/y6oq7udscnj8/1vPFxfYSNeX9yCkceaMkXJ/182336ab876b21901fc85ec17d9e6409/Email_Design_3_-_Version_10.png?w=2048&h=960&q=50&fm=png)
Email best practices
5 min
Why you should use UTM tagging on your campaigns
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![Illustration of Greek gods celebrating diversity](https://images.ctfassets.net/y6oq7udscnj8/7rihZZd5Q2fzzTAzAv7F5J/837c4265b3f48f372e7d0aff1a678ad7/Email-Marketing-14-value-washing.png?w=2048&h=960&q=50&fm=png)
Marketing
10 min
What is value washing, and why should you avoid it?
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![Hermes and a Goddess deliver mail in front of a green and orange house](https://images.ctfassets.net/y6oq7udscnj8/3VqoTKYE4EVcmhGauaR4HI/dd135e6deea2af2e545794c78c49f641/Deliverability_1_-_Version_8.jpg?w=2048&h=960&fl=progressive&q=50&fm=jpg)
Deliverability
8 min
How to handle SPF and the 4 steps to create an SPF record
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![Hermes on a moped delivering mail to a mailbox](https://images.ctfassets.net/y6oq7udscnj8/12GCL6VfdtTHoqT10xxe61/38806bb8c887f565679e8f0e35389791/Deliverability_6_-_Version_4.jpg?w=2048&h=960&fl=progressive&q=50&fm=jpg)
Email best practices
8 min
Reducing email’s carbon footprint
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![Hermes working with his laptop in the middle of the forest](https://images.ctfassets.net/y6oq7udscnj8/4CohqVgGmT7wVzfHEYErJk/f4e4bfbf799095696040e3c6007b116c/Email-Marketing-Earth-Day-03.png?w=2048&h=960&q=50&fm=png)
Marketing
12 min
Green marketing: What it is and what you can do
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![Hermes is floating with a picture in front of a screen](https://images.ctfassets.net/y6oq7udscnj8/4yBBKJD49MLe2n2DBP7VuW/0fe5407e56da6c27b4607e70d62cfc1f/Deliverability_2_-_Version_1.png?w=2048&h=960&q=50&fm=png)
Deliverability
7 min
Improving your sender reputation to boost email deliverability
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![Two gods with puzzle piece in front of bike seat](https://images.ctfassets.net/y6oq7udscnj8/6TpgvmQaPyCM2fJ3BtZ5n1/f8cb0700e77f626ccf11cbc5ee5e75ad/Integrations_2_-_Version_8.jpg?w=2048&h=960&fl=progressive&q=50&fm=jpg)
Product
Set up your Mailjet account
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![Gods discussing in a living room](https://images.ctfassets.net/y6oq7udscnj8/6jKGYEh1pfs3uh61WifiSv/653f57fde595b229f1eaa8ab4c6faf97/Culture_2_-_Version_6.jpg?w=2048&h=960&fl=progressive&q=50&fm=jpg)
Company
4 min
2016/17 at Mailjet: What’s happened and what’s to come
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![Zeus and a Goddess decorate a Christmas tree](https://images.ctfassets.net/y6oq7udscnj8/7zzmI2VqiOBapcPe4gJJ0U/9557261682d758e8ac662785d51baed2/Holiday_Season_3_-_Version_2.png?w=401&h=188&q=50&fm=png)
Email best practices
5 min
Personalized emails and customer relationships: A holiday tale
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![A thief steals some emails](https://images.ctfassets.net/y6oq7udscnj8/3eyDX8GmoRRQhRtcqvKbmw/0e3d2bbc4a594e4a13aeef56890c4c57/Email_Deliverability_4_-_Version_9.jpg?w=2048&h=960&fl=progressive&q=50&fm=jpg)
Deliverability
2 min
Quiz: What kind of spammer will you be this holiday season?
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![Hermes points to rocket, Hera takes notes](https://images.ctfassets.net/y6oq7udscnj8/1jAfgkaq9kwb4OdG6mkeOa/f9275e3c6545f6f24e55aeba2a3335cb/Email_Marketing_5_-_Version_3.png?w=2048&h=960&q=50&fm=png)
Email best practices
5 min
How to grow an organic email list using social media
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![Hermes and Hera with boxes and sparkling stars](https://images.ctfassets.net/y6oq7udscnj8/2OT7dNsgwAeTTkHmczOzBm/6acba7d07cee849110a367f182cad8f4/Stats_5_-_Version_3.jpg?w=2048&h=960&fl=progressive&q=50&fm=jpg)
Email best practices
4 min
Gotta catch ‘em(ail) all: Email vs. Pokémon GO
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