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Questions tagged [sendmail]

General purpose email routing software that supports mail transport via TCP/IP using SMTP

sendmail is a popular Unix-based email routing facility that makes use of and supports the transfer and delivery of email via the Simple Mail Transfer Protocol (SMTP) and many other ways (e.g. UUCP).

sendmail exists both as free and open source software and as a commercial project, called Sendmail.

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Forward Debian system mail to a real e-mail address

I have Debian running on an old Mac mini as a home router etc. with various of my crap running on it. It produces e-mail, for example from the result of cron jobs. I've used /etc/aliases to direct this to the main user account, but I'd prefer it to…
Richard Barraclough
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configuring sendmail to send mail through relay server in Oracle Linux 7.7

I am configuring my server to use relay server to send mail. I made the following entries in /etc/mail/sendmail.mc define(`SMART_HOST',…
d.s
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mail works, but sendmail doesn't! (Postfix)

I installed postfix on a server and when I send an email with the sendmail command it doesn't get delivered, but when I send with the mail command it does get delivered. What's worse, postfix logs claim it got delivered when using: This is what the…
user3413723
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Where does Sendmail get authentication from?

For reasons I can't get into at the moment, I'm authenticating to an SMB domain (using Samba 4.9.5 on a Debian host as the DC, if it matters) with a Mint Linux server in the domain with Samba 4.11.6 using Sendmail 8.15.2. I have Thunderbird on a…
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Sendmail not, er, sending mail

Can someone help me out here please. I have a CentOS 8 install, and am trying this line: echo "Subject: Hello" | sendmail -v me@mydomain.com This is /etc/hostname: web.mydomain.com This is /etc/resolv.conf # Generated by NetworkManager search…
Codemonkey
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How to verify if an email was received and read

I accidentally sent an email to a wrong email address. The owner told me that he didn't receive my email because there were no email servers configured for that domain. However when I did MX lookup, I found two mail servers for that domain, and…
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macOS - sendmail - postfix messages

My app is attempting to use sendmail to send an email message. I can see the email's sitting in /var/spool/postfix/maildropbut for some reason which I need help figuring out, the postfix pickup service is not sending them out?? - how to debug?
Tony
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Configure Postfix to prevent improper mail forwarding/duplication

I'm trying to reconfigure my Postfix mail server to stop it from improperly relaying mail to addresses that are listed as recipients but don't have my server's domain. Say my mail server's domain is abc.campus.edu. It's currently set up to forward…
deezy
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sendmail /etc/mail/access REJECT based off of keyword and TO: field

someone placed my email to a weird list and i get 100s of messages each day. I want to block the word "Unsubscribe" in all body emails address to me@example.com To:me@example.com error:550 5.1.1 User unknown Works perfectly but i want to…
user3265051
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Why is sendmail only logging internal messages to /var/log/mail?

I'm pretty sure that in the past my sendmail (triggered from PHP) was logging messages sent from PHP to the MTA and also MTA to the recipient. Although emails are received by the recipient and I can see the logs with journalctl -u sendmail I'm not…
Antony
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Sendmail not relaying to 127.0.0.1:25 instead of smart host

I am trying to use a SMART_HOST on RHEL7 with sendmail. I have configured sendmail.mc as follows: define(`SMART_HOST', `my.relay.com')dnl After compiling I have this line in sendmail.cf: # "Smart" relay host (may be null) DS[my.relay.com] So it…
Dominik Mimra
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Mailbox file of mutt suddenly disappeared

I have recently seen that my entire mailbox with mutt has suddenly disappeared. I don't know how to backup, if it is possible ? I am on Linux Debian 10. The sent file of all mails sent has not disappeared, that's weird. Maybe there are traces of…
youpilat13
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sendmail - how to unknown local user

I'm using debian as my webserver and sendmail as my MTA I do NOT have mydomain.com in the hosts file. I have setup sendmail.cf with the following dnl # Masquerading…
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How do I set up PHP to send email on Apache? (Windows)

I am setting up an Apache server (2.2.14) on Windows, and borrowing ideas from an existing XAMPP configuration. I am now trying to set up email functionality for PHP (5.3.1). (It needs to be able to handle attachments, just like the XAMPP server…
Nathan Long
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Is it ok (regarding spam) to use yahoo to send email from our domain me@mydomain.com?

I m enough of seeing my email arriving in spam folder. I would like now to send my emails not from my smtp server but from yahoo mail server. When you have a yahoo account, you can choose to send email from other sender (ie like me@mydomain.com).…
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