Sendmail Delivery Mode Background

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Linux sendmail command help and examples

    https://www.computerhope.com/unix/usendmai.htm
    May 04, 2019 · Linux sendmail command help, examples, and information. Linux sendmail command help, examples, and information. ... sendmail will fork and run in background listening on socket 25 for incoming SMTP connections. This is normally run from /etc/rc.-bD: ... Set the delivery mode …

Setting the delivery mode - OpenServer

    http://osr507doc.xinuos.com/en/MailMsgG/sndmlT.setting_the_delivery_mode.html
    Setting the delivery mode. There are a number of delivery modes for sendmail set by the DeliveryMode (d) configuration option. These modes specify how quickly mail is delivered. Legal modes are: i deliver interactively (synchronously) b deliver in background (asynchronously) q queue only (do not deliver) d defer delivery attempts (do not deliver)

Where is the .mc or sendmail.mc file The FreeBSD Forums

    https://forums.freebsd.org/threads/where-is-the-mc-or-sendmail-mc-file.34566/
    Dec 16, 2019 · While in background delivery mode system is available immediately. You can test it by yourself changing in submit.cf delivery mode from i to b and then send to someone something via sendmail [email protected][/COLOR]

sendmail.cf and submit.cf File

    https://www.ibm.com/support/knowledgecenter/ssw_aix_72/filesreference/sendmail.cf.html
    Delivery Mode. There are a number of delivery modes that sendmail can operate in, set by the DeliveryMode ... (defer), or b (deliver in background), sendmail will not expand aliases and follow .forward files upon initial receipt of the mail. This speeds up the response to RCPT commands. Mode i cannot be used by the SMTP server. Log Level.

Delay when using PHP mail() function to send email through ...

    https://serverfault.com/questions/65172/delay-when-using-php-mail-function-to-send-email-through-exchange-using-sendm
    I thought perhaps it's waiting for a response from sendmail, which doesn't come becomes it's just a relay? I specified the php.ini command line option for "sendmail_path" -odb, which should start sendmail with the "background" delivery mode, meaning to fire off emails in a separate process and then immediately return.

Sendmail in Queue-only mode. Solutions Experts Exchange

    https://www.experts-exchange.com/questions/10464498/Sendmail-in-Queue-only-mode.html
    To set up the QUEUE ONLY feature in the sendmail.cf DeliveryMode=mode (safe) sets the delivery mode that sendmail will run as. Select mode from: background - run asynchronously interactive - run synchronously queue-only - queue, rather than deliver, all mail deferred - queue all mail without doing any DNS lookups. (Was the d option)

Linux OS Service ‘sendmail’ – The Geek Diary

    https://www.thegeekdiary.com/linux-os-service-sendmail/
    This executes Mail Server Daemon which runs as a daemon in the background, listening for incoming mail from other machines. Sendmail can handle both incoming and outgoing mail. Sendmail eliminates some of the confusion caused by multiple mail delivery programs. It does this by routing mail for the user to the proper delivery program based on the email address.

Notes regarding outbound message throttling in Sendmail

    https://mikeberggren.com/post/116954767891/throttle
    By default, sendmail uses a delivery mode called “background” (define(`confDELIVERY_MODE',background) in sendmail.mc) which allows it to fork another sendmail process for delivery after accepting any message. This allows it to use multiple threads if/when necessary in order to deliver messages in an efficient manner.

sendmail - QNX

    http://www.qnx.com/developers/docs/qnx_4.25_docs/tcpip50/user_guide/utils/sendmail.html
    The sendmail utility forks and runs in the background, ... Set the delivery mode to x. Delivery modes are: i interactive (synchronous) delivery b background (asynchronous) delivery q queue only; actual delivery takes place the next time the queue is run D Try to automatically rebuild the alias database, if …

Add support for Sendmail's DeliveryMode option by ...

    https://github.com/PHPMailer/PHPMailer/pull/1091/files
    We use sendmail to send different kinds of mails. When we send bulk mails, e.g. a newsletter, we do this in the background (-O DeliveryMode=b), because it is faster in general. But when we directly send a single mail and the DNS-Lookup gets no reply, the website is stuck for 30 seconds and then dies with a timeout. So it's important to us to have the posibility to change the DeliveryMode ...

sendmail(8)

    http://www.itec.suny.edu/scsys/unix/doc/V5.0/docs/html/MAN/MAN8/0222____.HTM
    If the time command is specified, the sendmail command will run in background mode. This flag can be used safely with -bd. -qIsubstr ... Delivery modes are i for interactive (synchronous) delivery, b for background (asynchronous) delivery, and q for queue only (that is, actual delivery is done the next time the queue is run).

sendmail - HP-UX

    https://nixdoc.net/man-pages/HP-UX/man1m/sendmail.1m.html
    sendmail will fork and run in background listening on socket 25 for incoming SMTP connections. -bD Run as a daemon, but run in foreground ... DeliveryMode=x Set the delivery mode to x. The delivery modes are: b background (asynchronous) delivery. ...

sendmail(8) [suse man page] - Unix

    https://www.unix.com/man-page/suse/8/sendmail/
    DeliveryMode=x Set the delivery mode to x. Delivery modes are `i' for interactive (synchronous) delivery, `b' for background (asynchronous) deliv- ery, `q' for queue only - i.e., actual delivery is done the next time the queue is run, and `d' for deferred - the same as `q' except that database lookups for maps which have set the -D option ...

Wiley :: Red Hat Fedora Linux 2 Bible

    https://www.wiley.com/legacy/compbooks/negus/rhbf2/sendmailcf.html
    Understanding the sendmail.cf File. ... The next line relates to delivery mode: O DeliveryMode=background. The four possible DeliveryMode values are as follows: · background — Sendmail forks (splits off) a copy of itself and asynchronously processes the message. The default mode is background.

php - Send email Asynchronously via PhpMailer - Stack Overflow

    https://stackoverflow.com/questions/32743260/send-email-asynchronously-via-phpmailer
    The emails are now sent in background mode & my script returns in 0.16 secs! – rogerb Sep 24 '15 at 14:41 That's cool. You can probably set that param from inside PHPMailer using isSendmail() and setting Sendmail to /usr/sbin/sendmail -O DeliveryMode=b .

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