Outlook 365 Sending Limits

[Doofus]

I sent an email yesterday to 1000-odd recipients. I actually sent 10, because I only put 100 recipients in each email.

I got four bounce-backs, telling me "550 5.4.5 Daily user sending quota exceeded. ".

Fine; no problem. So today, I resent those 4 bounced emails, and they all failed again, for the same reason. Yesterday's went at 13:54 and today's went at 14:50, so that's more than 24 hours later.

Why has my quota not reset? What am I doing wrong?

[Harpoon]

Was there a server name shown against the 550 error / message?

Error message suggests it's Gmail still not happy with the amount you sent rather than Office 365...

[Doofus]

Harpoon said:

Was there a server name shown against the 550 error / message?

Error message suggests it's Gmail still not happy with the amount you sent rather than Office 365...

I don't knw if there was a server name. Something ending in .gmtp or something. So is Gmail's sending quota different?

[Harpoon]

GSMTP is Google Mail, so I'd expect all the messages that have bounce to be Gmail addresses.

They do run quotas but after a quick look I've only found them for sending e-mails out from Gmail, rather than to Gmail

[Doofus]

The recipients are all kinds of domains. gmail, btinternet, me.com, sky, hotmail and so on.

[Doofus]

Any idea how long I have to wait befroe I can send them?

[ArsE82]

O365 shouldn't be used for bulk emails. You'll run the risk of getting your IP blocked.

Best using Sendgrid or other bulk mail services.

[Doofus]

ArsE82 said:

O365 shouldn't be used for bulk emails. You'll run the risk of getting your IP blocked.

Best using Sendgrid or other bulk mail services.

It's one bulk email. Not a regular thing.

[robsdesk]

1000 sounds low, the rolling 24 hour limit is 10,000 - have you got any other bulk activity going on?

Limits are here: https://docs.microsoft.com/en-us/office365/service...

[Doofus]

robsdesk said:

1000 sounds low, the rolling 24 hour limit is 10,000 - have you got any other bulk activity going on?

Nope.

[Doofus]

I've tried againtoday, amd it worked.

Incidentally, I can only have 100 recipients in each email, but the internet says it should be either 500 or 2000.

[Derek Smith]

I had a similar problem with BTYahoo some years ago. Access to the email address was blocked. I was told that it was because I was suspected of spaming. It was with less than 1000 addresses. I discussed the matter with BT and was given a number that I could not go above, I think around 250. Access allowed. I sent my first 225 - just in case - and I was blocked again. Same phone call. I was told 250 but that it was best to keep the number a bit below. I asked if 225 was OK, and was told it was fine.

I spoke with a 'supervisor' and was told it was because of the attachment being near the 20meg limit (you've guessed it, it was around 17). I then went via my website host's email service. I forget the price increase but it wasn't that much. No problem there with 500 as the limit, and 400 or so as my limit. I've since cancelled that facility.