Known symptoms when archiving Yahoo mailboxes
Posted by Daniel Weuthen on 14 May 2019 12:37
(1) Yahoo mail settings regarding MailStore
IMAP is the best way to connect your Yahoo Mail account to a desktop mail client or mobile app. It allows 2-way syncing, which means everything you do remotely is reflected in your Yahoo Mail account no matter where or how you access it. Here are the settings you'll need to configure your mail client or app.
Incoming Mail (IMAP) Server:
Server - imap.mail.yahoo.com
Incoming Mail (POP) Server:
Server - pop.mail.yahoo.com
Your Login Info:
Email address - Your full email address (firstname.lastname@example.org)
(2) Yahoo known issues regarding MailStore
The archiving process with an Yahoo-mailbox is interrupted and MailStore Home is returning the IMAP error message: “The IMAP Server has returned an error”. In addition, you may see one of the following messages together with the error message:
This will reduce the folder sizes and speed up the archive time.
This is a known error message when you are trying to archive from a Yahoo Mailbox. This message can occur seen when the archiving profile has been running for exactly one hour. Unfortunately, Yahoo tends to slow down the client connection for IMAP and POP3, with random error messages. When using MailStore Home this may lead to an error or a cancellation of the archiving for the folder currently being processed or the archiving continues at a reduced speed.
If an error message occurs: “An error has occurred” a connection attempt failed because the connected party did not properly respond after a specific time, or an established connection failed because the connected host failed to respond. Or if you are prompted for a password or username error message: AUTHENTICATIONFAILED (#MBR1213) Please verify your account by going to https://login.yahoo.com (NO) occurs
Yahoo provides the following help: Please read the article from Yahoo “Ways to securely access Yahoo Mail” on the website ( https://help.Yahoo.com/kb/SLN27791.html )
Options to securely access Yahoo Mail (as of January 2018)
By default, Yahoo blocks access to Yahoo Mail from several third party apps that could leave your account vulnerable. If Yahoo sents you an email indicating that your app is using outdated security protocols or you're unable to log in from an older app, you still have several options listed above available to you.
Errors appear with the following, message size limits exceeded
There are several approaches to work around this symptom. Yahoo has documented information on its website, which is listed below.
Yahoo restrictions and limitations: Limits on sending email in Yahoo Mail ( https://help.Yahoo.com/kb/SLN3353.html )
In order to better enforce anti-spam policies, Yahoo does not disclose the number of recipients or emails that can be sent at one time:
(3) Additional Information
MailStore is investigating features to make archiving more seamless:
Known issues in MailStore in relation to Yahoo:
Article-ID: KB20180131-0-EN (Deutsche Version)