Cannot Send Mail, the server rejected one of the recipient's addresses.

I was having the same problem,so I deleted the account and reentered it and now all is good.

hey, tooBad41 -

I thought I did what you said -- I must have done part of it right,but now I can send mail but I can't receive email!

Thanks so much for posting this! My phone has been driving me crazy since I upgraded to IOS 5. Port 25 worked for me on the outgoing server! You have saved me!!! :-)

Hi there, I also use 1and1 Internet in the UK, and found that simply adding the email account username and password to the outgoing SMTP Primary Server did the trick.

When the outgoing server details are initially entered, these two fields are shown as optional - seems like they are mandatory.

25 just worked for me as well! Thank you SO much for the info!

My iPhone recently began displaying the Sender Address Cannot be Verified message. I researched and read internet postings to no avail. I went into Settings:Mail and everything looked fine although my iPhone was telling me it could not verify either my User ID or my password. I re-entered my password multiple times to no avail. Then, it dawned on me. I was entering my Apple password whereas it wanted the password for my Comcast mail account. I entered that password and all worked perfectly. I do not know what caused this problem but believe it was the upgrade to IOS 5. This was more than three hours out of my life.

On my new 4s iPhone, for my custom domain Email account hosted by Godaddy.com, at first I could only receive and NOT send. Another list referred me to this thread.

I've fiddled with all the settings, think I've gotten them correct, and now I can send but NOT receive email from that account.

I have 3 Gmail accounts and all of them transferred flawlessly when I set up the new 4s iPhone.

When I moved to a new 3G and then a 3Gs iPhone, all these settings transferred without issue.

I've tried everything repeadedly, including deleting the account, rebooting the device, and then starting over. Still no luck.

Any suggestions?

Thanks.

Dave

Brilliant! reset my 4s Iphone to comcast port 25 and now works perfectly Thanks.

i did this i erased my account then made it again and it should work

Nothing works for me

I have the server correct use username and password

Tried port 25, 110, 143, 3535, 80, 465

25 says that my server is not responding or check network connection. That is different message that the other servers. Maybe something wrong tonight?

I have smtpout.sercureserver.net as my out going like my email provider suggest. System looks very similar to go daddy .com. Antennae get their godaddy.com email to work?

Spent like 2 hours on this last night talked to the ISP and my email provider with little help. Fainally went to bed. Work up opend my iPad and swoosh it gave me the sent sound. Looked and my outbox was gone. Tried it from the email that wasn't working and it sent no problems. Used port 25. So why it give me **** last night but work fine now? I restarted the pad like everyone said last night with no luck

Oh well it works. Thanks

Hi Guys i hope that helps. I was having the same exact problem in my ipad 1ST generation so what i did was compared my settings in my iphone 4, after reviewing i could see in the outgoing when they say the optional wasnt filled with my info even knowing it's optional. So i filled right after i finished ( boom) it worked fine sending e-mails.

I tried using 25 and all the other ports and still can't send emails. I have a Comcast account. Any help?

I GOT THE SOLUTION!!!!!!!!!!!!!!!!!!!

Just delete all your accounts on the ipad and add them all over again. It worked for me. try it!!!! If it doesn't work, email me at ymmontes@me.com and I would personally walk you thru and set you up.

Another piece of good news! In case some of you are wondering how can you have your IPAD NOTES saved on your emails in case you lose your ipad....well I got a simple solution for that too!!!! email me

Port: 25

Yes!! This worked for me on iPhone! Hooray!

(I have Cox not Commcast)