Server error: '453 4.1.1 NGRFq77qzrEXi Too Many Recipients (TT502)'

[Pash02]

Hi I am getting this 

Server error: '453 4.1.1 NGRFq77qzrEXi Too Many Recipients (TT502)'

I haven't sent that many e mails today but about 60 last week 

I have had this error message a few times today after trying to send 2 bulk e mails  CCing 10 recipients at a time all bounced back.

I didn't think anything of it but now i have tried top sent one e mail and i get this error.

I've never had this issue before and send out over 140 e mails in a week every 4 months for my foodbank updates plus another 70 or so a few weeks later.

The last batch was the last few weeks.

I did manage to send the single e mail from web mail but not on my outlook client and on my phone via WiFi or EE data.

Ideas please.

[Gondola]

I would think that you'd go to the top and speak to the CEO's office and plead your case based on the good causes you support.

In practical terms, we have to accept that TalkTalk need to protect against email accounts being hacked and used to send spam to hundreds of recipients.

The figure you mention of 500 recipients is probably best sent over two days. So, 250 recipients per day. If any email contains up to 10 recipients then 4 such emails would be acceptable per hour. So if on day 1 you allocated 7 hours and each hour you sent 4 emails each with 10 recipients and then on day 2 allocated 7 hours etc. Obviously the time taken to send 4 emails is say 5 minutes, assuming they're pretty well prepared ready to send, so in each of those 7 hours you have 55 minutes free. It just means organising those two days and spending a little over an hour in total emailing in short bursts spread out over the 2 days.

It would be great to do this in one hit, but as I mentioned, that is a bulk mail service feature not a residential service offering.

But good luck in your objective.

[Pash02]

Hi @Gondola 

Thanks for the replies.

It is only every four months i do this type of emailing as it is when i update all the 274 foodbanks in Greater Manchester list that i compile and after the update i resend out the updated lists top all foodbanks and other agencies and anyone else who wants a list including all the partners in Manchester Homeless Partnership.

Total for the resending is probably 500 and i  do all this voluntary and am not paid hence why i would like to know how to over turn the filters every so often or who i need to speak to over this.

Thanks again 

[Gondola]

There are hourly and daily sending limits to the recipient count. TalkTalk reserve the right to flex those limits. 

The figures you've mentioned i.e. 10 recipients per email and 40 emails per day would definitely get a TT501 bounceback from the per hour limiter if all sent at once and spam protection would be automatically triggered. Spreading out sending during the day would probably be ok but repeat sending of emails during any one day might get a TT502 bounceback. The user does not have control over the limits nor any rate limiting imposed as a result of exceeding 'normal residential usage'.

If you need to be free of spam protection limiting then you need a business class email service designed for bulk emailing.

[Pash02]

Quick question or two 🙂 

How many bulk e mails can i send in a day / week?  EG an e mail containing 10 reorients and 40 e mails being sent out.

How many recipients can be CC'd in a e mail before it bounces back? i normally stick to 10 to be on the safe side but would like to include more recipients.

How do i get the spam thing turned off to avoid the issue in future?

Thanks.

[Pash02]

• Repeated sending of group messages when there's a failure to deliver to some recipients This may tick the box but it was only three e mails with 12 recipients in each one and all bounced back today.

I have never had this issue in the past with bulk e mails or single e mails.

No sending e mails for 24 hours it is then 😞   

Thanks for your quick response  🙂

Just thought what it maybe I replied to a group e mail today that had 185 recipients in it and it bounced back so resent it again, I have never done this before so this could explain it as this would put me over 500 e mails recipients this week if you include the group e mail above.||I have never done this before.

[Gondola]

TalkTalk Mail is a residential mail service and allows users to send hundreds of authenticated emails per day.  TT502 means that spam protection has been triggered to limit your sending because your mailbox send counter, that counts recipient numbers, has exceeded the daily limit. If you don't send mail then the counter will be fully reset in 24 hours. Whilst rate limited you may be able to send one mail message so you need to wait a bit longer because the limit counter is gradually relaxed in the run up to a full reset in a full 24 hours from the last stop on sending.

What could have resulted in such a high recipient count?

• Repeated sending of group messages when there's a failure to deliver to some recipients
• Unauthorised sending by a hacker