iPad Mail IMAP non default SSL port

Hi,

I think I have run into a bug. When I setup an NEW iPad Mail account using the default IMAP SSL port, everything works fine. The default uses SSL port 993. However, if I attempt to change to a different port in iPad settings like 7992 then the iPad Mail client will not authenticate. However, this works fine using my iPod 3rd Gen with iOS4 installed and my Macbook Pro running 10.6.4. Also port 7992 is actually redirected port on the server which directs things back to Port 993. So I dont think its a problem on the server side as port 7992 = 993. The message I see on my IMAP server side is: phoenix dovecot: imap-login: Disconnected (no auth attempts): rip=172.22.2.161, lip=172.22.2.26, TLS handshaking: Disconnected

In addition, when I try to switch it back to 993, it continues to refuses to authenticate and get the same message in my server log. They only way to get it to work again is to remove the Mail account from the iPad completely and create a new account with a different "Mail Description" name using the default SSL port 993. If I use the same "Mail Description", I continue to get the same problem. So maybe this another bug?? I see something simliar on the SMTP send side with a different port number. However, it does eventually send to my SMTP server.. it just takes a long time. Again, no problem with the iPod or Macbook Pro. Bug #3?

As you can see form the log message, I am running dovecot IMAP server. Although, I am using cacert.org server certificates on my IMAP, I have also installed the cacert.org root cert and my server x509 certificates on my iPad, iPod, and Macboot to make sure the certificates offered by my IMAP server are trusted. I get no error messages telling me there are any problems anymore with the certificates on the iPad, iPod or Macbook Pro side once I installed the certs.

Again. key points are. Default SSL 993 incoming port settings work fine. Making a change to this port and/or trying to change it back to the default settings fail. Account must be deleted and recreated using a different "Mail Account Descriptoin" in order to get it to work again. The SSL Port that I change it to is actually just redirect back to SSL 993 on my server. Desired redirect port 7992 Works fine with iPod 3rd Gen iOS4 and Mac OS X.

Why am I doing all this?? I dont want the stock IMAP SSL port because I want to reduce the likelihood of an internet brute force attack on my IMAP port using the default port number.

Can someone please confirm they have seen this problem also? I hope this will be fixed in an upcoming release of iOS for the iPad.

Macbook Pro, Mac OS X (10.6.4), iPod Touch 3rd Gen, iPad 1st Gen

Posted on Jul 28, 2010 5:40 PM

Reply
Question marked as Top-ranking reply

Posted on Mar 28, 2011 4:25 PM

I was having the exact same problem, but got things working by adding ":<port#>" to the server name.

"imap.example.com:7992"

The port number also has to be spesified in the advanced settings. Try it end let us know if it works for you too.
13 replies

Aug 1, 2010 7:06 PM in response to Alex Loves Apple Products

I experienced this just today when testing a new imap server. It does exactly as you describe, except that in my case it did recover after changing the port number back and a restart. I eventually decided to forward 993 on another host to my new server running on the original host. That configuration worked, so I can't blame it on the new imap server software.

Aug 31, 2010 8:05 AM in response to alexcf

I have upgraded to the latest version of iOS, but I also encounter the problem.

My IMAP server, which I have been using successfully on iPod touch, iPhone, and OSX for several years, will not work with my iPad. I have cross-checked the accounts settings and repeated the operation of setting up the account several times, but without success.

My IMAP server is SSL on port 8993 instead of the standard 993, and I have no way to set it on any port lower than 1024 because of university network policy.

Aug 31, 2010 9:54 AM in response to Alex Loves Apple Products

hiiii,

i can confirm that my Ipad setting is use the 143 SSL OFF instead of the standard port such as 465, 587.
before i use the 993 port and SSL ON, but it makes all of my folder not appear completly.
I have the PUBLIC FOLDER which content of all my company information. Using 993 port SSL ON just appear INBOX and SENT folder only. I have tried to use 443 , but when I send the email , my Ipad said "invAlid address" was appear , even i am sure there is the correct email adress.
NOW i use 143 for incoming mail and its works. a

I'm not beleive it... butvits really works....


rgds
iva

Aug 31, 2010 3:01 AM in response to Mark Wheadon

Hi,

I'm having the same issue... I deleted by mistake my account (problem with being left handed, the buttons are always in the wrong place!) and after re-adding it, no longer works. My iPad is with 3/three, and I'm actually wondering if the problem is them, rather than with the iPad? Would be great if someone could post something helpful/useful 😟. I know the mailserver is fine, as it is working for other people just fine.

😟.

Kind regards,

Alex.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

iPad Mail IMAP non default SSL port

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.