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https://www.usps.com/manage/hold-mail.htm
You can ask the Postal Service to hold your mail while you are on vacation or out of town. USPS will stop mail delivery to your address for up to 30 days. USPS Hold Mail Service is free and can be done online.
https://www.linuxquestions.org/questions/linux-server-73/postfix-email-getting-delayed-937739/
Apr 18, 2012 · I setup Postfix on a centos 6 box. First time I have used Postfix, usually use sendmail. ... Postfix - email getting delayed. I setup Postfix on a centos 6 box. First time I have used Postfix, usually use sendmail. ... This is a first for me and it does raise a question: are the "delayed" mail all from a CRON task or does it happen with regular ...
https://discourse.ubuntu.com/t/mail-postfix/11325
Jan 20, 2020 · Postfix Postfix is the default Mail Transfer Agent (MTA) in Ubuntu. It attempts to be fast and secure, with flexibility in administration. It is compatible with the MTA sendmail. This section will explain installation, including how to configure SMTP for secure communications.
https://easyengine.io/tutorials/mail/postfix-debugging/
Oct 14, 2013 · When you run into postfix or email issues, first thing, you should check is postfix mail logs which are present in /var/log/mail.log file. It contains postfix’s general logs. Keeping tail -f /var/log/mail.log running in a separate terminal window will be helpful.
https://community.centminmod.com/threads/postfix-delay-email.10441/
Feb 19, 2017 · “delay” shows the total time spent in processing this mail since it is was received up to the moment the mail left the Postfix engine “delays” shows the time spent by each daemon involved in the process in the following order: smtpd, cleanup, qmgr and local, in such cases where the mail is not internal, you will see the last time is that of the “smtp” daemon instead of “local”,
http://postfix.1071664.n5.nabble.com/Delaying-mail-delivery-td16053.html
Postfix does not have any controls for delaying mail. You might be able to hack something together with some scripts using the postsuper hold/release functions.
https://www.linuxquestions.org/questions/linux-server-73/postfix-as-a-mail-delivery-server-fails-status-bounced-loops-back-to-myself-891946/
Jul 18, 2011 · Postfix as a mail delivery server fails (status bounced loops back to myself) I'm trying to configure my Postfix server as a delivery agent for the server. From studying the Postfix documentation it appears that the feature for this is virtual_alias_domains and virtual_alias_maps.
http://postfix.1071664.n5.nabble.com/Mail-Delivery-Status-report-td101590.html
> Postfix can produce two types of mail delivery reports for debugging: > > • What-if: report what would happen, but do not actually deliver mail. This mode of operation is requested with: > > % /usr/sbin/sendmail -bv address... > > Mail Delivery Status Report will be mailed to <your login name>. > …
https://www.golinuxcloud.com/configure-postfix-mail-server-smtp-relay-rhel/
Nov 18, 2019 · If an incoming e-mail is destinated for the MTA server’s configured final destination domain (for example, a mail sent with the recipient address [email protected] is incoming to the example.com configured Postfix MTA server), it will deliver the mail to a local mailbox installed on the server (either in the filesystem or in a database system such as MariaDB).
https://groups.google.com/d/topic/list.postfix.users/eHQQWKA8nds
Jan 22, 2008 · new attributes in Postfix logfile records. - Better insight into the nature of performance bottle necks, with detailed logging of delays in various stages of message delivery. Postfix logs additional delay information as "delays=a/b/c/d" where …
https://en.redinskala.com/postfix-maillog-interpretation/
The “delay” field indicates the total time Postfix spent in processing the mail since it was received up to its final delivery. “Delays” shows the time spent by each daemon in the following order: smtpd, cleanup, qmgr and smtp. The “dsn” field shows the SMTP code received from the SMTP Server.
https://cloudmin.com/node/15463
Recently users have been reporting that mail randomly is not delivered from outside SMTP servers to internal accounts. What's strange with an issue I've tried to track down today, I can see Google's servers connection all the way through to the Postfix/Cleanup process.
https://help.ubuntu.com/lts/serverguide/postfix.html
Another option for configuring Postfix for SMTP-AUTH is using the mail-stack-delivery package (previously packaged as dovecot-postfix). This package will install Dovecot and configure Postfix to use it for both SASL authentication and as a Mail Delivery Agent (MDA).
https://opensource.apple.com/source/postfix/postfix-132.2/postfix/html/faq.html
Some people use Postfix to deliver mail across a LAN that is disconnected most of the time. Under such conditions, mail delivery can suffer from delays while the Postfix SMTP client performs sender and recipient domain DNS lookups in order to be standards-compliant. To prevent these delays, disable all SMTP client DNS lookups.
https://www.lisenet.com/2016/configure-rhel-7-to-forward-all-email-to-a-central-mail-server/
On RHEL 7, Postfix is used as the mail service. We are going to deploy Postfix on a null client. A null client is a machine that can only send mail. It receives no mail from the network, and it does not deliver any mail locally. We use a RHEL 7.0 virtual machine in this article.
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