Very Odd Issue Using Mail and Comcast

I have been unable to send email from my Comcast email account in Apple Mail. It shows emails as having been sent fine, but they don't arrive at the other persons mailbox. I have tried sending test emails to myself, to no avail. I tried trashing the preference file, which cleared up the issue, only for it to return several hour (or even minutes) later. This issue is particularly annoying because one would never know it exists. All emails sent from this account appear to send fine, with no errors being reported, but never are sent. I can send emails fine from my gmail account using Apple Mail, and for experimental purposes I tried Thunderbird, which worked fine. The SMTP server is clearly not the issue. I tried other servers, including the local server, using RapidoSMTP, but still, the same issue. Just a note: I can recieve emails on that account, but not send them. My installed plugins for Mail are: AttachmentScanner, MailFollowup, and Growl Mail. If anyone can offer any tips on resolving this weird issue, please share them.

If Mail put the message in Sent, that means the outgoing (SMTP) server told Mail that the message would be delivered. If the message never reached its destination, it could be because the SMTP server didn’t fulfill its promise or because the message was filtered out by either the recipient’s incoming mail server or the recipient’s mail client for some (probably spam-related) reason.
Check that your System Preferences > Date & Time settings are correct. An invalid timestamp in the message headers could be the reason one of the servers involved is rejecting those messages.
It’s strange that the problem happens with Mail, but not with other mail clients such as Thunderbird, though. I can only guess there is something about the way the messages are composed/encoded when you use Mail that causes them to be considered spam at some point. If you compose those messages as Rich Text, try composing them as Plain Text instead.

Similar Messages

  • I can send but not receive email using Mail and Comcast

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    I deleted the account and set it up again but still no luck. Oddly the Preferences says deleting the Accounts will delete everything but the Mailboxes are still there. Part of the problem?
    I do not have this issue using Thunderbird which is a program I do not like.
    I used Comcast's various online guides, a long useless chat and useless email to no avail. My Primary Account Holder email (which I never use) works but not my every day email account.
    MAC OS 10.5.8
    MacBook Intel Core Duo
    Mac Mail 3.6(936)

    *Sorry didn't see how old this thread was* Jono1968 if this could help you......
    Here is what I would try -
    Run the disk permissions utility....see if a repair works....
    On the mail menu, go to Window => Connection Doctor - do you see errors (red dot) If so, what does it say the error is caused by?
    Check this article out: http://support.apple.com/kb/ts1307
    Rick
    Message was edited by: rdvholtwood

  • Mail and Comcast issues

    For the past couple of months my son is having problems with Mail and Comcast. It regularly asks for a password to access and then the password does not work. We "change" his password to the same password and it will work for a day or so and then stop working again. I used Comcast's tech chat to try to fix, they had me changing ports. This did not work and while he was thinking of something else, I changed the ports back and mail worked in both directions. That last for a couple of hours when his password stopped working and we had to reset it again. Any advice from those who have encountered the same issue would be appreciated.

    Indy Fab Guy wrote:
    For the past couple of months my son is having problems with Mail and Comcast. It regularly asks for a password to access and then the password does not work.
    I have this problem regularly, almost always with one particular mail account. I'm convinced it's due to a slow response by the remote mail server. When it doesn't respond fast enough, Mail interprets that as a login (password) problem. Unfortunately there seems to be no way to tell Mail to wait longer for a response.
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  • Having mail 4.5 issues- open mail and get a new features message so I must import messages first in order to use mail 4.5.  Just recently put in MAC OSX 10.6.7.  Once it imports click done to start using mail, but end up with the rainbow wheel? Now What?

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  • Mac upgrade to 10.8.3 causes issues in mail and google chrome

    After upgrading my computer to 10.8.3 th other day, I have been having quite a few issues.
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    In my experience, it may take a few seconds to reconnect, but that's the maximum.
    I use iCloud and Comcast, so I'm not familiar with how Gmail performs, but it's related to how quickly their respective mail servers reconnect.
    It could also be related to the performance of your wifi router. Is its firmware up to date?
    I'm using an Airport Extreme and don't have the issues that you are reporting.

  • When I use Mail and want to paste an emailadress with a right mouse click in the adres field this doesn't work, ofcourse cmd V  works. How can I solve this

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    YAY!  That did it.
    Thank you so much.
    And a Very Happy and Prosperous New Year to you!
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  • I recently started using mail and I am always getting "can't find the server or server is busy.  I have AOL what should I do.

    I recently started using mail and I am always getting "can't find the server or server is busy.  I have AOL what should I do?

    Movies are not stored in your iCloud account unless you add them in the theater feature of iMovie version 10.

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  • When I open fire fox my yahoo page come up very odd, as does mail if I sign in. Can't figure out how to correct this. Home page and mail open fine in others.

    When I open Firefox my yahoo home page comes up very odd and not usable. If I log into my e-mail it also comes up odd and not usable. (the tools across the top like delete etc don't show up.) If I go to a different browser and pull up yahoo it is fine, if I log on to my mail there it also comes up fine and usable. Please help am new to Firefox and just barley getting to where I can us it really don't want to have to change to yet another browser. Losing all my stuff again. (Microsoft browser program stopped working) Please help, real desperate here. Thank you. Followed the instruction on how to take a screen shot, did so, but don't know how to attach it here. Didn't see instructions regarding that and beyond my limited abilities. Have it if someone needs it and can tell me how to attach or send.

    If you use extensions (Tools > Add-ons > Extensions) like <i>Adblock Plus</i> or <i>NoScript</i> or <i>Flash Block</i> that can block content then make sure that such extensions aren't blocking content.
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    *https://support.mozilla.org/kb/Safe+Mode
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    *https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

  • Sending Duplicate emails using Mail and mBox for mac

    I have been sending duplicate emails inadvertantly recently.  It seems it's when I use mBox for mac (registered copy) in Mail to use my Hotmail with IMAP.
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              Subject:           Test 19th
              Date:           May 29, 2012 12:06:19 AM GMT+08:00
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      Content-Transfer-Encoding:           7bit
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              X-Originalarrivaltime:           28 May 2012 16:06:21.0350 (UTC) FILETIME=[D2B26460:01CD3CEB]
    I'm surprised I can't find anyone else with a similar issue.  I've submitted a support ticket with mBox/fluent factory, but I'm still not convinced it's their issue, and possibly a Mail on Mac issue.
    Does anybody have any suggestions?  Thanks for your help!

    @ Kokola
    Great staff!!! MBox Fluent Factory is very poor app.
    I was having problem with duplicated sent emails and cleaning up my inbox, sent items and deleting emails. Try to contact them via email for over 3 months and never got a reply!
    I just used the suggested configuration and my Entourage (email app for MAC) is working perfetcly. I can visualise all my online folders now!
    Thank you so much!
    mBox never addressed the issue and the duplicated emails reached new levels of annoyance but the good thing is that Hotmail and Outlook.com finally rolled out support for IMAP.
    Incoming Mail Server: imap-mail.outlook.com
    Outgoing Mail Server: smtp-mail.outlook.com
    http://windows.microsoft.com/en-us/windows/outlook/send-receive-from-app
    No more duplication issues once you switch over, and no need for a third party (mBox)software to bridge the missing feature gap.

  • Issues with Mail and SMTP and Gmail Accounts

    So this isn't a question....more like a solution that I had to figure out. 
    We have multiple gmail accounts in our family and after upgrading to OSC Yosemite our gmail accounts wen't haywire.  My wife was sending emails that eventually were sent from my gmail account (mass neighborhood emails at that.....and all replies came to me instead of her).  I spent about 2 hours investigating and put together several different threads that finally fixed out problem.  The root of the issue is that you can share the same Incoming Mail Server for all of your gmail accounts and your mail will go to the accounts that it is supposed to go to, but you have to have individual Outgoing Mail Servers for each of your accounts otherwise all outgoing mail will come from one account only.  I don't know why this happened, it is a pain in the butt, but here's how I fixed it with 3 gmail accounts running through 1 mac.    
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    3rd - Give your gmail account a recognizable name in the "Name" field (if you have multiple Gmail accounts to add, you will want to distinguish between them).
    4th - type in your username ([email protected]) and password.  Make sure to add the suffix @gmail.com. 
    5th - Check the boxes that you want to add to your mac (mail, contacts, calendars, messages, notes). 
    6th - Click the "Details" button to ensure that you have an adequate description (see # 3 above) if you are going to have multiple gmail accounts to add. 
    7th - Open the Mail app.
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    9th - Then, from Preferences click on the Advanced tab and....Uncheck "Automatically detect and maintain account settings".
    10th - Then, go back to Account Information Tab and.....from the Outgoing Mail Server (SMTP) dropdown box, select Edit SMTP List....
    11th -  You need to create an individual SMTP Server Account for each gmail account that you plan to add.
    12th - To do this click the plus button.  Server Name should always be smtp.gmail.com.  Type in your own Description (I recommend naming it after the gmail account that you plan to attach it to). 
    13th - TLS Certificate should be "None"
    14th - Click the Advanced Tab - From here, uncheck the box for "Automatically detect and maintain account settings".  Then make sure Port is 587 (default is 25 for some ungodly reason).  Check the box for "Use SSL".
    15th - Set authentication to "Password".  User name MUST contain a suffice (i.e [email protected]).  Password is your normal gmail password. 
    16th - Click OK. 
    17th - Now your back at Preferences/Account Information - Link your account to the SMTP server that you just created by using the dropdown box next to Outgoing Mail Server (SMTP). 
    18th - Save all changes and close out of Mail App. 
    19th - Restart Mail and recheck steps 8-15....for some reason my passwords kept getting erased, but they eventually saved and took. 
    20th - Add another gmail account by following these steps and then recheck all along the way for passwords, suffixes, everything.  You will want to make sure that your accounts are all properly linked to their respective Outgoing Mail Servers (hence the distinct naming descriptions).   
    21st - Once you have added multiple accounts send email between them to make sure that they are being sent from and received to the correct accounts. 

    Wow! Oh my goodness Patrick, thank you so much man. That's a ton of informatiion to take the time to write out step by step and share with strangers.  I really, really am grateful to you.  I've been dealing with this for a month, half the month I kept changing my passwords and kept assuming I was making some mistake.  It used to work fine.  About a week ago I started looking for a solution and couldn't find one that worked. 
    You have changed that sir!  I'm good to go, stress level will lower when I am on my Mac, and I'm so glad to not have all these messages popping back up that I was done with! 
    Muchos Gracias Amigo!  Owe you one...

  • Hi some of my mail doesn't get through. Using mail and me/mac/icloud addresses

    Hi ... I'm losing mail and I can't figure out why it's not getting through. Have three devices (iMac & MacBook, running Mac OS X 10.7.5, and iPhone 4, running iOS 6.0.1). I use apple's mail program and have icloud account. Yet some folk can't send me mail. Any ideas???

    Thanks for picking up on this issue. The mail doesn't bounce back, so they think it's gone out OK. We've established that emails come through as long as there is no attachment. The sender is in my address book, so I'm at a loss as to what else I can check/do. Any suggestions?

  • How do I ensure mail is sent from the correct email account?  I have two set up on my iPad, and it seems to choose which one to use somewhat randomly.  This has happened both when using Mail and when emailing form another app.

    I have two email accounts set up on my iPad -- one I use &amp; one I monitor for a disabled person.  On several occasions, mail I have composed and sent from my email account was sent showing the other account as the sender.  This has happened both from within Mail and when emailing from other apps, such as Safari, Photos, etc.  Any idea what is going on and how to prevent this from happening?

    Are you confirming your POP account is selected as the sending email account before the message is sent?
    And regardless if the email is a new email or is replying to or forwarding an email received by the POP account and cofirming the POP acconut is selected as the sending email account, the message is sent by the Gmail account?
    All message sent by the POP account are sent by the Gmail account?
    If so, delete the Gmail account from your iPad and test if a message sent with your POP account which will be the only email account available with the iPad's Mail app is recieved from your POP account/address.
    If not, something else is wrong or on play that has nothing to do with the iPad.

  • Using mail and its rss feed on 2 mac computers

    Hello to the mac users comunity!
    I have 2 questions here:
    1st:
    I am using for work a iMac and i am planning to use for my business trips a mac book air.
    I am using the mail and its rss feeeds, i would like to be able to read my mails and rss on both computers and above all that when i have read an email on one computer or one rss feed, it appears as "read" in the other computer
    Is this possible?
    2nd:
    I have about 20 different rss feeds folders on mail, for reading them i have to go from one rss feed folder to the other, how is it possible to view all rss feeds mixed up together in one only feed?
    Thanks a lot for your help

    Hi, no idea about RSS, chucked that about 10 tears ago,but if it's an IMAP account & you use Mail, it'll still report unread on a Ma that hasen't red it yet, unless you mark it read.

  • HT1277 Using Mail and Outlook

    I have a Mac Mini, OS X 10.6.8.
    I have been using the server Tierra.es for my emails but it is closing down. I want to transfer my list of contacts etc to a new account with Outlook.
    Is there a "simple" way to do this?
    Do I have to reconfigure my Mail account?
    Is there any way to download all messages so that I can see them in Mail? Can I somehow transfer my whole Address Book to the Outlook site?
    Is thre a way of keeping all messages in and out on my computer so I don't have to access the Outlook online account all the time?
    Any advice welcome.

    Hi, no idea about RSS, chucked that about 10 tears ago,but if it's an IMAP account & you use Mail, it'll still report unread on a Ma that hasen't red it yet, unless you mark it read.

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