iCloud blocking my ISP

Your ISP's tech support is overflowing with B*****T

iCloud has no spam filtering built in, it is in the client (on a Mac that would be Mail)

You are not going to be seeing Apple's logs so what's the plan? There are at least 2 ISP's involved, 2 email accounts and many transport mechanisms, assuming that you know where the problem is will make it very hard to find.

Good luck to you and your colleague, post back after all else fails.

iCloud does use server sided filtering to block spam. This is in Apple's own documentation.

The server side filtering in iCloud mail is user junk filtering, it acts on incoming mail, not outgoing.

By 'user junk filtering', do you mean the user controls the filtering on the server? I can't find documentation to back this.

Also, I'm not referring to outgoing, as this isn't the OP's reason for posting.

Imp68 wrote:

Also, I'm not referring to outgoing, as this isn't the OP's reason for posting.

This is what the OP said:

When I send an email from my ISP's mail server to an iCloud recipient it does not arrive. Nor do I get a bounce.

That's outgoing.

Imp68 wrote:

By 'user junk filtering', do you mean the user controls the filtering on the server? I can't find documentation to back this.

Open your iCloud account (on the web) and explain to me how you can set Outgoing filters?

Here are the incoming filters that you can't find documentation for:

Do you have an iCloud account? if you do please go to www.icloud.com and check what you are saying against the reality.

The recipient is an iCloud user. That's not outgoing, that's incoming to iCloud, which is the OP's issue. His issue is sending from a non-icloud address to someone who is receiving at iCloud.

The image you posted is for mail rules, which has nothing to do with server sided spam filtering. Those are user created...again, not the OP's issue.

I think you're failing to understand the actual issue you're posting to.

Edit -----------

Ok, I see what you're saying about the "outgoing". This is assuming the issue is with the ISP doing the filtering, and not iCloud. If the filter is from the ISP, then yes, that would be outgoing. If it's from iCloud, then it would be incoming. I was only ever talking about iCloud doing server sided spam filter, which is why I'm saying the issue is potentially incoming. Sorry about the confusion with that, but it's hard to really say if it's an outgoing (from ISP) or incoming (to iCloud) issue. It could be either one.

Message was edited by: Imp68

Then get in touch with his friend (the one who doesn't receive his mails) and instruct him. I'm out.

My apologies regarding the incoming/outgoing. See my edit. I do see what you were trying to say in that regards. Sorry for my misunderstanding of what you meant... it was just a perspective thing.

Note: Apple does do some filtering on incoming emails to iCloud accounts that the user has no control over. One particular phrase that will trigger stopping the email is "barely legal" referring to **** sites. This has been discussed in other topics here and on other websites in the last month. You might be using a phrase that is triggering the blocking of the email to an iCloud account.

You can test that by sending the same email that was formally lost to both an iCloud account and a non-iclouc account and see what happens.

OT

Looks like it more than just content. Time to contact Apple.

Out of curiousity, who is the email provider, who's emails appear to be vanishing?