Help - since 15:00 this afternoon Port 25 timed out and no mail can be sent

Have been sending and receiving mail all day - suddenly with no warning or reason mail cannot be sent from either my account or my wife's (on the same computer using the same ADSL line. The message is that "This message could not be delivered......The connection "smtp.mac.com" on port 25 timed out. All outgoing mail is blocked.

Read the following article, which applies to all versions of Mac OS X (not just Mac OS X 10.4.2 and earlier as the article states) and can be useful for other mail accounts as well (not just .Mac):
.Mac: Server timeout alert message when sending email

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Connection on default ports timed out

I administer an xserve that up until 3 days ago was sending and receiving email fine. After a user went over quota I adjusted their quota to allow them to remove emails as they were unable to modify any email at all. In the process of adjusting their quota I have broken something and now get "Connection on default ports timed out" error.
I am able to send using webmail but unable to receive from an external source
I have posted my post configuration below and would appreciate any help.
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
daemon_directory = /usr/libexec/postfix
debugpeerlevel = 2
enableserveroptions = yes
html_directory = no
inet_interfaces = localhost
mail_owner = _postfix
mailboxsizelimit = 0
mailbox_transport = cyrus
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
messagesizelimit = 26214400
mydestination = $myhostname,localhost.$mydomain,wcc.school.nz
mydomain = wcc.school.nz
mydomain_fallback = localhost
myhostname = mail.wcc.school.nz
mynetworks = 127.0.0.0/8
newaliases_path = /usr/bin/newaliases
queue_directory = /private/var/spool/postfix
readme_directory = /usr/share/doc/postfix
sample_directory = /usr/share/doc/postfix/examples
sendmail_path = /usr/sbin/sendmail
setgid_group = _postdrop
smtpdenforcetls = no
smtpdpw_server_securityoptions = plain,login
smtpdrecipientrestrictions =
permitsasl_authenticated,permit_mynetworks,reject_unauthdestination,permit
smtpdsasl_authenable = yes
smtpdtls_certfile = /etc/certificates/Default.crt
smtpdtls_keyfile = /etc/certificates/Default.key
smtpdtlsloglevel = 0
smtpduse_pwserver = yes
smtpdusetls = no
unknownlocal_recipient_rejectcode = 550

It's not surprising.
Your configuration includes:
inet_interfaces = localhost
This tells postfix to listen on localhost only. i.e. it won't listen on the network interfaces and accept mail from remote clients.
There may be other issues with the configuration, too, but that's the first one to fix.

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I've been having the same issues too, and thought it was just my outdated computer or account?!
Every time I try to purchase a song, "session has timed out" shows up after I click "agree" to the terms!? I seem to be in the exact same scenario as 'SportsBarn' above: Itunes support have replied repeatedly with the same "solutions" but nothing has helped or even been applicable. I have an older laptop, 2005 Powerbook running OS X 10.4 Tiger so it's not compatible with the latest iTunes 10.5.2 which requires minimum OS X 10.5. I've been using the balance already in my iTunes account (from redeemed giftcards over the past few years) with no problem, until recently (my last successful purchase was October 2011). I wonder if it's the older OS or just a redemption glitch even with newer computers?

I am trying to export photos and keep receiving an error message. I tried relocating my catalog to see if that would help since I am saving to an external drive, but now I can't find my catalog at all either.

I am trying to export photos and keep receiving an error message. I tried relocating my catalog to see if that would help since I am saving to an external drive, but now I can't find my catalog at all either. I am a newbie at this and don't know what I'm doing wrong or if I can even use an external drive for my photos and catalogs (I did enable smart previews so I do know how to do that part). Help!

You can use an external drive with LR but I recommend only using it for
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I'm trying to update my iphone, but when I download the software update and then when it is "complete" a message pops up stating that it has been timed-outed and to try again later. This is the 5th time i've tried. And i am getting very annoyed.

I'm trying to update my iphone, but when I download the software update and then when it is "complete" a message pops up stating that it has been timed-outed and to try again later. This is the 5th time i've tried. And i am getting very annoyed. Can anyone help me?

Disable your firewall/security software and try again.

I was able to drag and drop songs from iTunes in to Garage Band so I could slow them down to learn how to play them. Since the newest version of iTunes came out I no longer can. Is this a feature that I can turn back on?

I was able to drag and drop songs from iTunes in to Garage Band so I could slow them down to learn how to play them. Since the newest version of iTunes came out I no longer can. Is this a feature that I can turn back on? I really would like to continue to utlize that feature because it makes learning to play songs easier. Any help would be appericated.

To import music into your iTunes library on the computer go to iTunes>Help>iTunes Help>Add items to iTunes and follow the instructions
Delete the "songs" that do not play in your iTunes library and reimport them.

While using 6.0 this afternoon it suddenly dissappeared and was replaced by a stripped down version of 5.0 with no addons or bookmarks !!!

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@[https://support.mozilla.org/en-US/user/160087 verdi]: thanks for your helpful suggestions. The "fix" (actually a kludge, but I gotta work with what F5 and my employer give me) was:
# Install/run latest Firefox 3 (despite there being [https://support.mozilla.org/en-US/questions/932269 no 64-bit version for linux]) using [https://docs.google.com/open?id=0BzDAFHgIxRzKbmJDUGZqTzhfbDg this bash scriptlet].
# Create a [https://docs.google.com/open?id=0BzDAFHgIxRzKQjRyQndqUTJpRXM run script] to start firefox so that one can
#* choose the appropriate profile (I was unable to set it from the script without startup error)
#* run multiple instances (I don't want 3.x firefox touching my uplevel profile)
# Run Firefox 3.x with the runner, then point it to my employer's site to install the [http://support.f5.com/kb/en-us/products/big-ip_apm/manuals/product/apm_compatibility_matrix_10_2_1.html F5 Network Access Plugin] (restarting firefox as required).
The gnome-terminal tab from which I invoke the runner spews a bazillion "wrong ELF class: ELFCLASS64" errors, but the plugin runs, and I can SSH normally (though more slowly) to servers on the VLAN from another terminal tab.

Yosemite Mail Connections to the server on the default ports timed out.

I have upgraded two machines to Yosemite and I am having huge problems with Mail. It works perfectly well with my .mac mail but it does not work with my xServer running OS X server 10.6.something. I have little triangles but the mail account and I get the message "Connections to the server “mailgate.cp-lighting.co.uk” on the default ports timed out."
Any machine running an older version of OS X has no problems connecting.
The machine running Yosemite all have the same problems, they all have the triangle, they all receive mail but if you read it or delete it, it re-appears as unread so I can receive 20 emails read then delete 6 and a few minutes later I have 20 unread emails again.
Worse mail in the outbox get stuck behind a queue so it takes ages to send any mail, if I look at activity viewer I can see processes constantly running "Moving Messages" , "Synchronizing Sent", "Updating Cache directory"[sent] , "changing flags" and finally "Updating Cache directory"[Inbox]
If I go to mail and preferences/accounts I cannot edit the incoming mail server it is greyed out. I wanted to change the domain nane for the ip address of the server to see if that made any difference but it is not possible. I don't understand what Apple have done it is a nightmare.
Is anyone else having these problems?

Yes, my husband has had this problem too with his IMAP email account. He is temporarily using Thunderbird, which is working better, but it is also reporting lost connections. Seems the issue is deeper within the networking or security services of Yosemite than the Mail app itself.

HT4628 some times my internet connection will say it has timed out and I can not connect. but my friends mac never has a problem. How can I fix this?

some times my internet connection will say it has timed out and I can not connect. but my friends mac never has a problem. How can I fix this?

Just confirming, when you have the trouble, the wifi icon is grayed-out or has all bars showing? I believe you are saying that is is grayed-out - not connected to your wireless router.
I have a Mini that started to lose connection to the Internet after the 10.7.3 update but still showed the wireless as connected. If I pinged the wireless router, I would get a quarter of the packets failing to return. The router was a Netgear that supported 802.11N connections. As a test, I set it to 802.11G (54MBps) maximum and the Mini worked fine for a week - no dropouts. And for the other devices that did support 802.11N, while there was a noticeable delay with downloads and pages loading, they still worked.
As another test, I changed the Netgear router to a Billion 802.11N model and the Mini has not had a problems since. (It is still using 802.11g). So it could be your router that is causing trouble for your Mac.
Have a look at some of the More Like This postings in the right column. There has been a number of Mac owners experiencing wifi connection issues and some very good suggestions as to how to resolve their issue.

I've tried downloading iOS5 several times and after an hour each time I get a message that says my network connection has timed out. But I can't find any information about "timing out" or how to correct the situation. Any help?

I've tried downloading iOS5 several times and after an hour each time I get a message that says my network connection has timed out. But I can't find any information about "timing out" or how to correct the situation. Any help?

Disable your antivirus and firewall, and try again.

Hi there can anyone help. I am connected to the internet by ethernet but my connection keeps timing out and my network diagnostics shows all green and network connection ok but still no internet connection. the other wireless laptop in my flat works well.

Hi there can anyone help. I am connected to the Internet by Ethernet but my connection keeps timing out and my network diagnostics shows all green and network connection ok but still no Internet connection. the other wireless laptop in my flat works well. Could the other wireless laptops being used in my flat be affecting my connection. what can I do to get connected, keep connected. Thanks for any ideas out there.

My network connected for a few hours then went back to timing out. I have not changed anything. However there four additional laptop users in my family who do not seem to be having any problems using their wireless connection. Could their film and music downloads be causing the timing out of my connection and if so is there a way I could prioritizes my computer or limit their use?

I attempted to download X Yosemite to my Mac Pro. It timed out and would not finish. I cannot stop the website from believing it is still downloading. Help.

I attempted to download X Yosemite to my Mac Pro.
It timed out and would not finish.
I cannot stop the website from believing it is still downloading.
Help.

oatgeo wrote:
I checked the proxy and it should be OK. That's mean I have to try and try again until I get it from the slow servers.
Yes.

Iphone 5 Screen is Frozen Connection Timeout Error Connection to this app has timed out

I upgraded to IOS 7 just a few hours before my Iphone 5 screen froze and I cannot make changes - I have a Connection Timeout Error with Connection to this app has timed out. With Ok in blue. The screen doesn't respond, I can turn off the phone, tap OK or do anthing. Any advice on how I can reset or fix?

Check for any anti-virus or anti-spyware software you might have. Temporarily disable that to continue. Normally this is what will cause a timeout. I assume you have a good Internet connection?

HT4436 My iPhone was stollen this afternoon. I'm wondering if anyone can teach me how to synchronise my iPhone content to my iPad? Thank you.

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This was EXACTLY what I needed about the purchases I made from my device. However, is there a way to re-download other ones you've made from a computer? Because I realized some of them were not just purchased from my device.
This is a picture of what it looks like now:
http://tinypic.com/r/107quxu/7
As you can see, the stuff circled in red doesn't give me an option to download from Cloud Beta because it already says "downloaded".
any way to get around that?

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I downloaded adobe reader 10. It went through initializing, then started the installation, but it timed-out and was not successfully installed. Is there someplace I can change a setting that is causing it to time-out? How can I prevent this problem?

You can try downloading the full offline Reader installer from
http://get.adobe.com/reader/enterprise/

Help - since 15:00 this afternoon Port 25 timed out and no mail can be sent

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