Mail is very slow downloading in iOS 18

Same problem with iPad and iPhone since installing ios18. Tried all the suggestions on this thread and nothing helps. Doesn’t matter if it’s Wi-Fi or cell. Gmail works fine but xfinity does not, takes 2-3 minutes for each email content to load. Loaded iOS 18.4 today and still no fix. When is Apple going to acknowledge and fix this?

The one by Moriarty91 that I responded to, to whitelist the icloud.com Domains in PiHole.

This worked for me. Thanks eheffa!

I removed and re-added my ionos.de account, and now it seems to work properly again (iOS 18.2)

Mail was slow on IOS 18, it’s now unusable on 18.2

It doesn’t look like Apple have any plans to fix this as the problem seems to be getting worse.

Might be time to look at the Pixel. 😡

Unfortunately this had no affect for me.

This worked for me. Thanks.

Latest iOS is ok except email downloads takes forever as others report here. I only have an iPhone but it’s always been nearly instant downloading email until now. I’m on iOS 18.2.

For me it was Sky broadband shield. I turned that off and emails came through quickly.

It seems odd that apple can’t accommodate internet security though.

I tried this and it worked perfectly for me. Mail now downloading very fast and no need to keep refreshing! Thank you.

MacOS 15.3\IOS 18.3 update seems to have improved\fixed for me. Early days but looking much better.....

Agreed. No problem now.

Thanks to @Moriarty91 for the hint with

mask-h2.icloud.com

mask.icloud.com

because i had a piHole which was blocking this.....

After whitelisting my problem was solved!

I am also facimg the problem of slow download of emails since i upgraded tp iOS 18

its so very frustrating and missing out seeing and replying on very important emails

Thank you, this seemed to have helped for my Gmail accounts!