when replying to an email, I receive this message. It is a POP3 account. I've experienced this in the iPod touch and reset the touch, it worked. Tried the same in the iPad, no luck. I've checked and rechecked that the smtp address is correct. I can receive but not send..help
I am having very similar issues. I have been sending and receiving email with no problem for a couple of weeks. I am now traveling, and using the hotel and airport public wifi and suddenly I'm able to receive email but not receive it. I am using a Roadrunner (Time Warner) server. I did nothing to change my email settings, but now every time I attempt to send I get the Mail Sender Address Invalid message. What gives? It doesn't seem like anything should have changed.
Steve
Although, very frustrating, your issue has probably another cause. You see, most ISPs around the world do not allow to send emails when not connected to their network (e.g. When your travelling and use an airport or hotel hotspot).
The way I solved it : I setup a free gmail account and use the smpt.gmail.com outgoing sever when roaming.
That is not solving my (and many others) problem, as I have it when I'm at home...
I figured out that I start getting the problem after a synch with iTunes... It is definitely a bug.
I hope this helps
Pascal
After I sent the post yesterday I realized that I had synched with iTunes before leaving on my trip, which I realize now is a big mistake. I am beginning to think that the only recourse that I am going to have is to delete the current email account and re-create it. I hope that Apple is aware of this bug as this seems to be a perennial and very annoying problem for a lot of people. It seems that when using one of the pre-approved email accounts (such as gmail) there is no problem, but for anyone using a different ISP they are lost in the wilderness. Even creating the account was an ordeal that I finally solved by viewing several iPad blogs.
Yes, I could route through gmail, but that seems to be a very inelegant solution for a company that prides itself on the elegance of it's software and design.
I have to say that again you are right. When I returned home tonight and was back on my personal wifi everything was back to normal the emails that sat in the outbox for three days sent like a charm. I guess when I travel I should route my roadrunner email to my gmail account.
I bought the 64GB 3G iPad on the day it was launched in Australia for business use.
In my home-office, I use the domestic WiFi plan which is considerably cheaper than the mobile 3G plan I bought for use on business trips.
The plans are from two
different providers which means that outgoing emails have to be routed through two different SMTP servers depending on whether I am using WiFi or 3G.
And therein lies the problem. While on a business trip, I found that I could not send any emails over 3G with an error message to the effect ‘Invalid Sender Address’. The emails were just stored in an ‘outbox’ which only appears when there is a problem. Yet these emails fired off when I got home and had switched off 3G and turned on WiFi.
NOTE: the error message is *badly worded* as there is no problem with the sender address... read on for the *real issue...*
Playing around with the email account settings, I have found that the iPad *gives up* on sending emails after failing to send though the ‘Primary SMTP server’.
Contrary to the text at the foot of the server settings page, *it does not even attempt to try* the ‘Other SMTP servers’ listed that, in my case, have always been turned ‘on’.
THE FIX: Permanently turn
‘off’ the primary SMTP server and ensure servers for *all active carriers* are listed and turned
‘on’ in the ‘Other SMTP server’ list.
This forces the iPad to try the servers listed in the ‘Other SMTP server’ list till the right one for the active communications channel (3G or WiFi) works and fires off the email.
This checking takes a little longer but ultimately, it works.
This has been logged with Apple and has been
acknowledged as a 'problem to be resolved'.
For all of you who seem to have tried "everything" such as resetting, deleting your email, rechecking your smtp etc. and its still not working, I may have the answer for you.
Unlike other iPad users who have been fortunate enough to just enter their username and password or turn SSL on/off...you guys are lucky. I tried this and other methods and was unfortunate every time to the point where in one blog I read that the only solution if all else fails is to redirect your mail through gmail. This was unacceptable for me.
After a combination of tweaks, this is what worked for me. If you're a user that has tried everything else and it still ain't working, then hopefully this will.
Step 1:
Go to your smtp mail settings
You will see your primary mail server and may also see a list of other mail servers with an "on/off" switch beside them. Turn these all to "on".
Step 2:
Now go to your primary smtp server details
Enter your username and password
Select SSL on
Authentication: Password
Port: 573 --> VERY IMPORTANT
Step 3:
Save and exit
You do not need to restart, try sending email from the account you just changed. If it works repeat the above process for your other accounts.
I have developed this same problem in recent days. None of these fixes have worked for me. I found that if I turned off wifi my 3G kicks in and sends them. Irritating. The iPad has been my first experience with Apple. I have other problems. Let's just say I ain't buying stock.....
Got my ipad today and was having the same problem sending email through my Cox account, always getting the sender address invlaid error message. In settings under Outgoing I changed the port to "25" and now it sends and receives fine.
