Checklist
Check the A or CNAME record for the website, MX records for e-mail, SPF, DKIM, DMARC, mail autoconfiguration records and SSL certificate validity.
After changing DNS, test the domain from more than one network because propagation may appear unevenly.
How Hostilla.pl helps
During migration we help go through configuration step by step and reduce downtime for the website and e-mail.
If the domain stays with another registrar, it can still be pointed to Hostilla.pl DNS and hosting.