Questions tagged [smtp]
SMTP is the Simple Mail Transfer Protocol, the most recent standard of which is defined in RFC 5321. It's the Internet standard for sending and receiving email.
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Why do certificate CNs not match the hostnames provided in MX records?
I'm the author of checkdmarc, an open source CLI tool for checking DMARC and other email security standards. One of those checks involves testing if the mail servers listed in a domain's MX records ...
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How to interface with Postfix `non_smpt_milter`?
After many hours attempting to configure OpenDKIM with Postfix and having no luck, I have come to the conclusions that:
I cannot get OpenDKIM to work
I am not able to find a suitable out-of-the box ...
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send email using multiple domain emails using main domain postfix smtp server
I have a domain with postfix for SMTP server, eg EM-NAME.DOMAINNAME.COM
We are sending emails in bulk from domain email [email protected]
I am trying to send emails on behalf of my ...
2
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0
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SMTP Port 25 Issue on Nginx Mail Proxy
I set up an Nginx mail proxy server and configured it to distribute to several mail servers as a front-end server. However, I need to open port 25 in the configuration; otherwise, I cannot receive ...
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SMTP - How to send mail as @example.com when example.com cannot be used as source server/IP
I have run into a bit of an issue when attempting to set up a mail system where the parent domain, example.com, already has A records and a web server as well as many clients utilizing the parent ...
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2
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Set custom ingress port on google cloud run
I'm trying to deploy an SMTP Server on google cloud run and so far I haven't been able to figure out how to attach a TCP/UDP Load Balancer to the back end.
Is there a way for my Cloud Run application ...
google-cloud-platform
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0
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40
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Attempting to set up an exim4 SMTP only server that can send out messages from two domains
I am attempting to set a STMP server that can send out messages from two different domains
Adding this line to the the config file (update-exim4.conf.conf)
PRIMARY_HOSTNAME = $sender_address_domain
...
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Gitlab SMTP Configuration
I am new to Gitlab. I configure SMTP in Gitlab that looks like,
{:authentication=>:login,
:user_name=>"My Email",
:password=>"Email ...
1
vote
1
answer
40
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Postfix connection timeout to all servers
I have Postfix on an Ubuntu server.
postconf mail_version
mail_version = 3.6.4
Every email i send to any recipient ( tried gmail , hotmail and yahoo ) , is stuck in the queue
(connect to alt2.aspmx.l....
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vote
2
answers
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Abuse of Abuse reporting system / Feedback loop by spfbl.net
We are getting below abuse emails from Abuse reporting system / Feedback loop by spfbl.net
Can someone explain how are these even valid Abuse emails in any sense at all, because they are clearly being ...
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2
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154
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How to configure sendmail to forward all mail to another host?
I have an Ubuntu host with a public DNS A record on example.com. The sendmail program is installed on the host with the sendmail package.
The MX records are set up to use Google Workspace, per Google'...
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2
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120
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How can I mitigate a flood of inbound emails that look legitimate to filters?
I have a mail server - postfix, amavis, dovecot. Currently one of my inboxes is being flooded with random email from all over the globe. It's like someone signed me up to 10,000 newsletters all at ...
- 125
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wordpress + wp mail smtp = email not sending with php mailer
I have a docker wordpress website with WP mail SMTP plugin.
I selected the default PHP
Emails are not sending. sending test email gives a 504 timeout error
php sendmail is installed
Dockerfile for ...
- 57
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0
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Postfix replace in body by adding CR
I'm trying to configure Postfix body_checks function in order to add a CRLF when an end of attachment is detected using this:
/(.+)--$/ REPLACE $1--\r\n
The regex is correctly applied but the \r\n is ...
0
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How to change the sender address using mailutils and postfix?
May 27 14:19:33 localhost postfix/qmgr[21793]: 87FD870AD12: from=user@localhost,
size=398, nrcpt=2 (queue active)
May 27 14:20:03 localhost postfix/smtp[22591]: connect to
mail.rungel.net[95.168.160....
