Can phpmailer + gmail be used to send emails to 1000 mailboxes in a day?

Can phpmailer + gmail be used to send emails to 1000 mailboxes in a day? I want to use the phpmailer program and gmail mailbox to send emails to 1000 mailboxes in a day. I don't know if it can be implemented. Will it be treated as spam by gmail? Is there a limit on the number of emails sent by gmail every day?

Reply to discussion (solution)

There are not many 1000, of course. But direct sending is inevitably considered as spam.
You can change the ip address or the sender's email address.

Of course, there is also a sending interval.

Why must I use gmail?

Group emails are easily blocked...

I tested it with phpmialer and sent emails continuously to the same mailbox. if there are more than three emails in outlook, they will enter the spam mailbox.
But in other mailboxes, such as enterprise qq, it will not be considered as spam!

Why must I use gmail?
Is there any way for a master? Because I have not found a suitable mailbox or the software can send the same email to 1000 different members in a short time, it is easy to be treated as a junk file. Foxmail does not seem to work either. do you need to create a separate email system ??

Change your own data as much as possible
Ip address, source, version, time, and so on

I have used and cannot send so many messages consecutively, because some mailboxes will allow you to enter the verification code during sending. you must log on to the sender's mailbox and enter the verification code before sending the message. You can try to rent an email server to help you send it specially, but remember that the 1.1 mail server cannot let him send 1000 emails in a short time.

A gmail mailbox can send up to 150 emails a day.