Mike B's user avatar
Mike B's user avatar
Mike B's user avatar
Mike B
  • Member for 14 years, 6 months
  • Last seen more than a month ago
1 vote

How to block SendGrid spam with sendmail?

2 votes
Accepted

Does sendmail support the BinaryMime ESMTP extension? If so, how can this be enabled?

1 vote

What does the sendmail daemon do exactly when it receives a kill -15 (SIGTERM) request? How does this affect messages that are in transit?

1 vote

STARTTLS sendmail handshake failures on SMTP and retries

1 vote

prohibit .doc/.zip attachments in sendmail

1 vote

How to block IP addresses from port 25

5 votes
Accepted

Benefits of using a subdomain for sending email?

1 vote
Accepted

What would cause ifconfig NIC frame drop counts to increase SLOWLY (90-100 frames per day)?

1 vote
Accepted

forward a single message from queue with sendmail

0 votes

Is it possible to disable SSLv3 in Sendmail 8.14.3?

3 votes
Accepted

Sendmail messages rejected from Microsoft when using TLS

1 vote
Accepted

Intermittent full system hang on VM server running CentOS 5.10

2 votes

bcc me when someone sends an email from my email address

6 votes

Connection to URL using OpenSSL client works, but curl fails

1 vote

Prevent user from hiding windows updates

0 votes

Web form sending email to gmail-hosted domain is not delivering for 1 of 3 clustered web servers

1 vote

Recover organisational information from SSL cert / key

3 votes
Accepted

Mail has stopped working on Centos since instlling MailScanner

1 vote
Accepted

How soon after getting a 400-class SMTP error will SendMail try connecting to a backup MX record/host?

1 vote
Accepted

Is it possible to configure sendmail to require/use certain ciphers during TLS negotiation?

3 votes
Accepted

Is there a way to change the string format for an existing CSR "Country Code" field from UTF8 to Printable String?

3 votes
Accepted

Load balancing SMTP in a way that doesn't hide the source IP address

1 vote

Same domain only : smtp; 5.1.0 - Unknown address error 530-'SMTP authentication is required

4 votes
Accepted

Opportunistic TLS for incoming mail with masked SMTP banner

3 votes

SMTP session between 2 mail servers on the internet: Without authentication?

0 votes

How can I route a SMTP message by FROM domain (not To, CC, or BCC)

1 vote

PTR OK, SPF, DKIM passed but email messages are marked as Spam by Google?

0 votes

Outlook message formatting issues with signutare

1 vote
Accepted

Can anyone tell me why an e-Mail with an attachment fails from one domain but not another?

3 votes

Why can't other computers access my web server on 127.0.0.1?