i cannot send mail today on mac ? os x -Connections to the server “p04-smtp.mail.me.com” on the default ports timed out.

Same here from Cadiz, KY. First noticed it this morning at 9:42 AM CST and has continued throughout the day and into the evening. Saw where another user could send from AT&T home wifi. Not working for me with U-Verse. Was actually relieved when I saw these posts that it wasn't another U-Verse blunder.

I've tried that but I still get the p04 error. So, for me, when the server name I enter is "smtp.mail.me.com", the device still tries to send from p04-smtp.mail.me.com. I tried creating an outgoing server named p02-smtp.mail.me.com, and that doesn't seem to work either. I'm in the middle of trying various permutations of the username -- username, username@me.com, username@mac.com, none of which have worked so far. I've tried p01-smtp.mail.me.com, p03-smtp.mail.me.com next and no matter what I name the server -- p01..., p02..., p03... -- I get the p04 error.

(The home wifi network for me is Comcast -- that works. AT&T is the cel service and that does not work, and neither does the work wifi -- not sure who provides that service.)

This finally worked for me (without p#-). I needed to turn of the iCloud server to make it work. The username does not include @...

Thanks!

Did you turn off the default "iCloud SMTP Server" in the primary server slot?

(my problem was only with iOS devices, could send via phone network or WIFI, desktop works okay because smtp.mail.me.com is one of the server options)

At least on iPhone TURN OFF icloud STMP Server, add the p01-STMP.mail.me.com and turn it ON. hit done. And it works!!! Have yet to do this with other devices.

Nice one Mark, this works for me and I can now send email from my 5s and iPad. Cheers fella.

This also works for my mail client on my rMBP, although it does take a few seconds for the mail to leave my outbox.

Thanks Mark, I've also got it to work on my iPhone by disabling the iCloud SMTP server and adding p01.

For others going down this road, there's a typo - The correct server name for the workaround server is:

p01-smtp.mail.me.com (not stmp)

I've also got this to work on my OS X accounts by:

Mail -> Preferences -> Accounts

Select the problem account and "Edit SMTP Server List" on the "Outgoing Mail Server" dropdown menu

Add a new server with the + button

Give it a Description (e.g. iCloud Temporary)

Server Name: p01-smtp.mail.me.com

TLS Certificate: None

Click the Advanced Tab

Check Use default ports (25, 465, 587)

Check Use Secure Sockets Layer (SSL)

Authentication: Password

Username: Enter your username

Password: Enter your password

Click OK

Make sure the "faulty account" has the new SMTP server selected. Mine actually says "iCloud Temporary (Offline)" but it appears to work.

Hope this helps someone else...

Also hope that Apple sort out the p04 issue soon!!!

I spoke to Apple help line in Cork yesterday & they said it was s ystem error at their end they were currently working on, but it's still not working this morning

Same here, can receive but won't send.

This worked for me !

Thank you

Thanks you for the detailed instructions. I have had this problem since Thursday in Rome Italy. Your detailed instructions solved the problem for me.

Exactly he same problem here. When is it going to be resolved?

Thank you! this solution worked for all my devices.