Mails to plus.com domain are being rejected as spam

[#1]

Hi,

Since about a month ago, when I send emails to several different email addresses on the plus.com domain, I'm being sent an email by plus.com saying that my email has been rejected as spam. The same email is going to quite a few email addresses on non-plus.com domains and these aren't being rejected.

I've sent an email to abuse@plus.net asking for changes to be made so that the mails aren't rejected but there's been no response.

What else can I do please?

Thanks

[#2]

A couple of questions: Does the email contain a number of links? Are you sending them as a 'normal' mail,or  as 'CC'/'BCC'.?How many are on the 'mailing list'?

Just three things that I  have noted causing issues in previous cases like this - there may be more, and this needs someone with more knowledge/expertise than me to solve.

[#3]

Yes, the email contains links but only to the same domain as the email address from which the email is sent. Don't want to remove the links really.

Sent as a BCC. Could send as a TO as any replies will be moderated.

Thanks

[#4]

OK - how many links? Sending as BCC removes one problem, so don' use 'TO', and how many recipients of the email are there?

[#5]

Typically, about 10-12 links per mail. Correction to the below: one does go to different domain (Just Giving).

So sending via BCC is better than sending via TO?

Apologies, I didn't respond to your question re the number of recipients. I have three mailing lists, each containing 150-175 email addresses; nearly 500 altogether. Separate mails are sent to the mailing lists at one-hour intervals. Would I be better to avoid mailing lists?

Many thanks for your help.

[#6]

If you are sending bulk emails (1) you should always use BCC (CC at least) (2) How many recipients are there in each sending/hourly interval? - As a rule, I think the PN SMTP sever gets 'upset' if that figure goes over about 20 (don't quote me), and if they contain links, it could be less than that - it might be seeing these as spam, which it will block if there are a lot - to protect its 'reputation'.

[#7]

175 in the first sending.

Another 175 an hour later.

A final 150 an hour after that.

But only four of these email addresses are on the plus.com domain. As it happens, they're all in the second batch. Interestingly, I only get the spam rejection on three of them.

Regards

[#8]

OK. I still think there may be a 'volume' problem somewhere, but this is a bit over my 'pay grade'.

Wonder if @MisterW  or @Townman have any ideas - more in their area?

[#9]

nterestingly, I only get the spam rejection on three of them.

That could well be down to how those recipients have their spam settings. If they have spam disabled then their mail won't be router through the Cloudmark system and could explain why those emails aren't rejected.

As  @jab1  says the problem is likely the links and/or volume

[#10]

nterestingly, I only get the spam rejection on three of them.

That could well be down to how those recipients have their spam settings. If they have spam disabled then their mail won't be router through the Cloudmark system and could explain why those emails aren't rejected.

As  @jab1  says the problem is likely the links and/or volume

[#11]

Hi MisterW,

Thanks for your help.

I'm only sending emails to four users on the plus.com domain. Would this really be a problem volume-wise?

Thanks again