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Swift SMTP (formerly Welcome Email Editor) · Security record

Is Swift SMTP (formerly Welcome Email Editor) safe?

No known vulnerability affects the current version (6.3). 4 issues were found in earlier versions and fixed, the latest disclosed on Jan 8, 2024.

Checked 3 days ago against the WPVulnerability database, for version 6.3.

How it’s looked after

Last release
Dec 1, 2025 (11 months ago)
Releases in the last year
1
Tested up to
WordPress 6.9.11 (current: 7.1)
Active installs
7K+

4 known vulnerabilities

  • 1 medium
  • 3 not rated

None affects the current version.

Disclosed each year

  • 20231
  • 20242

Every known vulnerability in Swift SMTP (formerly Welcome Email Editor)

Newest first, with any that affect the current version at the top.

Questions about Swift SMTP (formerly Welcome Email Editor)’s security

Is Swift SMTP (formerly Welcome Email Editor) safe to use?

No known vulnerability affects its current version. Earlier versions had issues that are now fixed, so keep Swift SMTP (formerly Welcome Email Editor) updated: most attacks target sites that haven’t updated.

Does Swift SMTP (formerly Welcome Email Editor) have known security vulnerabilities?

None that affect the current version. WPVulnerability’s database lists 4 older issues, fixed in earlier versions, so keep Swift SMTP (formerly Welcome Email Editor) up to date.

Is Swift SMTP (formerly Welcome Email Editor) still maintained?

Its last release was 11 months ago. No support threads were opened in the last two months.

Is Swift SMTP (formerly Welcome Email Editor) compatible with the latest WordPress?

Swift SMTP (formerly Welcome Email Editor)’s readme says it’s tested up to WordPress 6.9.11, while the current version is 7.1. That doesn’t mean it breaks, but its author hasn’t confirmed it works with the latest releases.

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Vulnerability data from WPVulnerability (CC0), which gathers records from CVE, Wordfence, Patchstack and WPScan. A clean record isn’t a guarantee: keep every plugin updated.