Articles - Deliverability (SPF/DKIM/DMARC)

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.
Undelivered mail (bounce): what it means and how to fix it

Understand bounce codes (4xx/5xx) and the most common reasons like user unknown, mailbox full, or spam rejection.
Set up SPF, DKIM, and DMARC for your domain (GARMTECH)

Set up SPF, DKIM, and DMARC for your domain on GARMTECH to improve email deliverability and reduce spam issues.
Emails go to spam: deliverability checklist

Checklist to reduce spam placement: SPF/DKIM/DMARC, authenticated SMTP, content tips, and reputation basics.
Email app says “Authentication failed” or cannot send/receive mail (GARMTECH IMAP/SMTP)

Fix the most common email login problems on GARMTECH: wrong server hostname, wrong port/encryption, missing SMTP authentication, or an incorrect password.
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.
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.
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.
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.
Email not sending: troubleshoot SMTP (GARMTECH)

Troubleshoot SMTP sending issues for GARMTECH email: correct server/port, authentication, and the most common error messages.

Copyright © 2026 GARMTECH. All Rights Reserved.