send from email sent has our domain but email header is hosting company

Our send from email is set up as [email protected]

but header return our hosting company email is the email sender in the email header as
Received: from someinfo.hostdomain.com (someinfo.hostdomain.com

The email is received as "the store name via hostdomain.com"

How can I configure this to show the send from email that's configured in store admin ?

Is there something that works similar to the PHP mail function where the sender can be set with the -f parameter ?

Thank You

This is a question to ask your host - ZenCart does not have control of these particulars

RCwebdev:

How can I configure this to show the send from email that's configured in store admin ?

Is there something that works similar to the PHP mail function where the sender can be set with the -f parameter ?
Yes. Instead of using "PHP" as the transport method, use SMTPAUTH and provide your SMTP credentials in the corresponding settings.

Thank you for your replies.

If the host doesn't require SMTP authentication and I'm not sure how to configure it.

If I can send out mail from a php mail function with the f parameter, and we are on a Linux server is sendmail likely to work ?

Thank You

Ask your email hosting provider "What settings are needed to send email from
[insert store email address] using an email client?". These will be the same settings needed to configure SMTPAUTH in Zen Cart.

RCwebdev:

If I can send out mail from a php mail function with the f parameter, and we are on a Linux server is sendmail likely to work ?
Maybe, but not as effectively as SMTPAUTH.
By providing auth credentials your emails will be sent as authenticated (logged in as a valid user of the email account doing the sending) and thus will look less like spam than any sendmail (with or without the -f) message would.

Your SMTPAUTH credentials are the same username, password, port, server name that you would use in Outlook or in your mobile phone etc to login to the email account.

Thank You, Dr Byte. I'll give it a try.

RCwebdev:

If the host doesn't require SMTP authentication and I'm not sure how to configure it.

it is highly doubtful in today's environment that your host does not require SMTP authentication...