Xfinity Email and iOS email application

I have the same thing happening with 18.1

Thank you for reaching out @MrJDubbs Have you check the link: https://www.xfinity.com/support/articles/third-party-email-access to set up to your email with third-party email programs
 

I had the exact same problem since I upgraded to iOS 18. Slow connecting and loading of Comcast email in iOS MAIL app. This does not happen with another IMAP email inbox (Gmail) or M365 email. I am currently running 18.2 on an iPhone 13. I think it’s an iOS MAIL app problem with Comcast’s IMAP. Some users claim removing the Comcast mailbox in iOS (Settings/Apps/Mail/Accounts then delete Comcast mailbox) and then re-adding the mailbox fixes it but not all agree. I tried it 12/24/2024 and it helped. Connection time was cut in half and load time for individual Comcast emails is now normal. It looks like the problem is a need to reprovison the Comcast login credentials (especially with TFA) after upgrading to iOS 18. Problem mostly resolved for me so far.

I contacted Comcast and they did help me with my email problem. They  had me log out of iCloud after turning off "find my phone" . They did some stuff at their end too. After I logged back into iCloud, for the most part, my male was behaving pretty well- much faster than before. And eventually, I turned "find my phone" back on. however, I also was having problems with my modem, and this communication was occurred online through a chat. I recommend anybody who with a similar problem call Comcast and do it over the phone rather than online because each time we lost contact I had to start over with a new tech support person

Yes!  Very frustrating- just got a 16 pro and it’s not the WiFi because I never had the problem before getting this phone.  

I spent over three hours on the phone today between Xfinity, Apple and again with Xfinity. None of my Apple devices, MacBook Pro, iPhone 12, older iPad, new iPad (18.2) would receive new incoming emails. When trying to send emails, three sent just fine last night but the next two sat in my Outbox yet today. After doing everything imaginable, Apple said it was a Comcast server issue (not connecting properly). When second level Xfinity associate called me back, he basically said it’s an Apple problem because the Xfinity website works just fine. In this day and age, who wants to login to a website to send or receive emails? Why does the Mail App receive but not send mail, except on my old Mac? Obviously, they communicate with each other in spite of that rep saying it’s an Apple issue. I’m beyond frustrated and about to cancel WiFi, cable and Xfinity Mobile after many years of being a “loyal” customer. 

Can Xfinity post a solution to this problem?  I’m having the same issue, and I presume hundreds of other users are too.  I tried the checkbox thing, and that didn’t do anything.  I run Outlook on my iPad and the email is nearly instant, but in the Apple Mail app it’s suddenly terrible, both on the phone and tablet.  

I added my gmail account to the iOS mail apps, and it works instantly while Xfinity is still experience significant connection and download delays.  I tried the DM as indicated, but nobody ever replied to multiple attempts.  What now?