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For each week beginning on a given date, the figures show the number of sites that reported they are using the phpmailer_smtp 2.3.1 release.

PHPMailer SMTP project page
phpmailer_smtp 2.3.1 release page
All PHPMailer SMTP usage statistics
Usage statistics for all projects

Week starting	Count
June 14th, 2026	1680
June 7th, 2026	1584
May 31st, 2026	1371
May 24th, 2026	1159
May 17th, 2026	356
May 10th, 2026	341
May 3rd, 2026	349
April 26th, 2026	342
April 19th, 2026	350
April 12th, 2026	360
April 5th, 2026	330
March 29th, 2026	321
March 22nd, 2026	332
March 15th, 2026	349
March 8th, 2026	363
February 22nd, 2026	401
February 15th, 2026	393
February 8th, 2026	393
February 1st, 2026	382
January 25th, 2026	426
January 18th, 2026	429
January 11th, 2026	427
January 4th, 2026	435
December 28th, 2025	376
December 21st, 2025	377
December 14th, 2025	447
December 7th, 2025	444
November 30th, 2025	453
November 23rd, 2025	456
November 16th, 2025	513
November 9th, 2025	537
November 2nd, 2025	567
October 26th, 2025	564
October 19th, 2025	645
October 12th, 2025	808
October 5th, 2025	685

Only Drupal websites using the Update Status module are included in the data. Read more information about how these statistics are calculated.