After our site relaunched I tried to send a bulk email to users who hadn't logged in for more than 90 days to try and re-activate them, about 5800 users all together. After about 300 emails the rest failed and now I have 200+ pages of failed emails all with the error:

> MAIL FROM:<admin@brfcs.com>

and that's all.

If I click to resend, it works, but there's 200+ pages of them, is it possible to resend them all?

What method/service is set up to send emails?

My guess would be that you use your hosting provider and they limit the amount of mails you can send out. 

Yeah, it's using GMail's smtp service, I guess they'll limit it fairly heavily.

Yes, they have a limit of 500 emails per day

https://support.google.com/mail/answer/22839?hl=en#zippy=%2Cyou-have-reached-a-limit-for-sending-mail

Quote

You may see this message if you send an email to a total of more than 500 recipients in a single email and or more than 500 emails sent in a day.

 

Time to get the cap in hand out & go to the beancounters for some money to buy Sendgrid 😉

 

53 minutes ago, brfcs said:

for some money to buy Sendgrid

It's free for 100 mails per day ( plan your bulk mails and you won't have to pay for it;) )
Or get Amazon SES, which is also a free alternative to sendgrid, but comes with 62000 free emails each month:)

Can I integrate SES the same way Sendgrid is? I thought SG was the only option.

You can set up any mail that uses SMTP by adding the relevant details into the email settings area. You can see how to do this here if needed