There was an issue sending your emailThe recipients on this email thread previously bounced, marked

[AJovovich]

why I get an error when sending a message from hubspot, and when sending from almost directly, the letter is delivered? 

Error :There was an issue sending your email. The recipients on this email thread previously bounced, marked this email as spam or has unsubscribed.

only on this email: luis@swifthomeoffer.us

[danmoyle · Accepted solution]

@AJovovich because HubSpot sends millions of emails through the system over thousands of customers, it's possible that in the HubSpot system, another sended sent to this client, causing a global bounce. 

  "Global bounce: a hard bounce for a permanent reason across three or more HubSpot accounts. Permanent bounces include unknown user and mailbox full. Global bounces are dropped from future emails across all HubSpot accounts."

[Email bounce types]

So, even if you can send from your email provider, it's possible there's an error somewhere else. You should be able to work with HubSpot to solve this.