https://sendgrid.com/marketing/sendgrid-vs-mailgun/?extProvId=5&extPu=49397-gaw&extLi=637463656&sem_adg=10730241342&extCr=10730241342-338623920675&extSi=&extTg=&keyword=mail%20gun&extAP=&extMT=p&utm_medium=cpc&utm_source=google&gclid=Cj0KCQjwuJz3BRDTARIsAMg-HxVee5zNVX6m2mm2P6RkAe64zGZjMV8jiQLCMdh4bOC9Ya9LDfItChAaAgYKEALw_wcB

https://sendgrid.com/docs/for-developers/sending-email/

https://sendgrid.com/pricing/?extProvId=5&extPu=49397-gaw&extLi=637463656&sem_adg=10730241342&extCr=10730241342-338623920675&extSi=&extTg=&keyword=mail%20gun&extAP=&extMT=p&utm_medium=cpc&utm_source=google&gclid=Cj0KCQjwuJz3BRDTARIsAMg-HxW4_46_wjyhUYgWsTDLWwDsg8yrJrwumVop-ev6yAqiTRUQiq2SIukaArT-EALw_wcB

https://es.sendinblue.com/?utm_source=adwords&utm_medium=cpc&utm_content=Competitors&utm_extension&utm_term=%2Bmailgun&utm_matchtype=b&utm_campaign=876056788&utm_network=g&km_adid=438704512303&km_adposition&km_device=c&utm_adgroupid=54105950041&gclid=Cj0KCQjwuJz3BRDTARIsAMg-HxVk0G_YO6o72_RYw5p9F2gg4cbviNmshfNTqE6ygIeRLE0S-ZICkZoaApsjEALw_wcB

https://www.mailgun.com/


https://documentation.mailgun.com/en/latest/quickstart-sending.html#add-receiving-mx-records

https://signup.mailgun.com/new/signup