Deliverability (SPF/DKIM/DMARC)
Articles
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SPF PermError: fix “too many DNS lookups” and multiple SPF records
Fix SPF PermError by consolidating SPF records and reducing DNS lookups to stay within SPF limits.
- 20.02.2026 00:58
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- deliverability
- dns
- troubleshooting
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Undelivered or blocked email (bounce): what it means and how to fix it
Understand bounce codes (4xx/5xx), common reasons like user unknown, mailbox full or spam rejection, and what to do when the outgoing filter blocks your mail.
- 20.02.2026 00:57
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- deliverability
- mailbox
- troubleshooting
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Set up SPF, DKIM, and DMARC for your domain
Set up SPF, DKIM, and DMARC for your domain on GARMTECH to improve email deliverability and reduce spam issues.
- 20.02.2026 00:56
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- deliverability
- domain
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Email app says “Authentication failed” or cannot send/receive mail (IMAP/SMTP)
Fix the most common email login problems on GARMTECH: wrong server hostname, wrong port/encryption, missing SMTP authentication, or an incorrect password.
- 20.02.2026 00:58
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- email setup
- imap
- smtp
- troubleshooting
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Emails go to spam: deliverability checklist
Checklist to reduce spam placement: SPF/DKIM/DMARC, authenticated SMTP, content tips, and reputation basics.
- 20.02.2026 00:57
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- deliverability
- security
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Website contact form not sending emails: SMTP setup and deliverability checklist
If contact form emails are missing, set a proper From/Reply-To, use authenticated SMTP (port 465), and verify SPF/DKIM/DMARC for reliable delivery.
- 20.02.2026 00:57
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- deliverability
- email setup
- smtp
- troubleshooting
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My email account is sending spam: secure GARMTECH Business Email
What to do if emails are sent from your address without your action: immediate security steps, what to check in webmail, and how to prevent повторные incidents.
- 20.02.2026 00:57
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- account
- business email
- deliverability
- security
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GARMTECH.Email spam control: mark spam/not spam and whitelist senders
Learn how to use Spam/Junk folders, mark spam correctly, and whitelist trusted senders in GARMTECH.Email to reduce false positives.
- 20.02.2026 00:57
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- deliverability
- garmtech.email
- security
- webmail
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Email not sending: troubleshoot SMTP
Troubleshoot SMTP sending issues for GARMTECH email: correct server/port, authentication, and the most common error messages.
- 20.02.2026 00:56
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- deliverability
- email setup
- smtp
- troubleshooting
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Send emails from your website via SMTP (recommended for contact forms)
Use authenticated SMTP (port 465, SSL/TLS) to send reliable website emails on GARMTECH: WordPress SMTP plugins and PHP script examples included.
- 20.02.2026 00:57
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- deliverability
- email setup
- smtp
- website