diff --git a/files/helpers/const.py b/files/helpers/const.py
index 57cd3a5be..55caf69ec 100644
--- a/files/helpers/const.py
+++ b/files/helpers/const.py
@@ -1239,3 +1239,5 @@ forced_hats = {
 	"is_suspended": ("Behind Bars", "This user is banned and needs to do better!"),
 	"agendaposter": ("Egg_irl", "This user is getting in touch with xir identity!")
 }
+
+EMAIL_REGEX_PATTERN = '[A-Za-z0-9._%+-]{1,64}@[A-Za-z0-9.-]{2,63}\.[A-Za-z]{2,63}'
diff --git a/files/helpers/jinja2.py b/files/helpers/jinja2.py
index 553ad1b21..b6d0e00f6 100644
--- a/files/helpers/jinja2.py
+++ b/files/helpers/jinja2.py
@@ -48,5 +48,6 @@ def inject_constants():
 			"KOFI_TOKEN":KOFI_TOKEN, "KOFI_LINK":KOFI_LINK,
 			"approved_embed_hosts":approved_embed_hosts,
 			"site_settings":app.config['SETTINGS'],
-			"EMAIL":EMAIL, "calc_users": calc_users, "TELEGRAM_LINK": TELEGRAM_LINK
+			"EMAIL":EMAIL, "calc_users":calc_users, "TELEGRAM_LINK":TELEGRAM_LINK,
+			"EMAIL_REGEX_PATTERN":EMAIL_REGEX_PATTERN,
 			}
diff --git a/files/helpers/regex.py b/files/helpers/regex.py
index 4f68ca1de..3e576d0c2 100644
--- a/files/helpers/regex.py
+++ b/files/helpers/regex.py
@@ -50,7 +50,7 @@ emoji_regex3 = re.compile(f'(?<!"):([!@{valid_username_chars}]{{1,35}}?):', flag
 snappy_url_regex = re.compile('<a href="(https?:\/\/.+?)".*?>(.+?)<\/a>', flags=re.A)
 snappy_youtube_regex = re.compile('<lite-youtube videoid="(.+?)" params="autoplay=1', flags=re.A)
 
-email_regex = re.compile('[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,}', flags=re.A|re.I)
+email_regex = re.compile(EMAIL_REGEX_PATTERN, flags=re.A)
 
 utm_regex = re.compile('utm_[0-z]+=[0-z_]+&', flags=re.A)
 utm_regex2 = re.compile('[?&]utm_[0-z]+=[0-z_]+', flags=re.A)
diff --git a/files/templates/forgot_password.html b/files/templates/forgot_password.html
index 38ea6f500..e650bc677 100644
--- a/files/templates/forgot_password.html
+++ b/files/templates/forgot_password.html
@@ -19,7 +19,7 @@
 
 																<label for="email" class="mt-3">Email</label>
 
-																<input type="email" pattern='([A-Za-z0-9]+[.-_])*[A-Za-z0-9]+@[A-Za-z0-9-]+(\.[A-Z|a-z]{2,})+' autocomplete="off" class="form-control" id="password" aria-describedby="passwordHelp" name="email" required>
+																<input type="email" pattern='{{EMAIL_REGEX_PATTERN}}' autocomplete="off" class="form-control" id="password" aria-describedby="passwordHelp" name="email" required>
 
 																<input autocomplete="off" class="btn btn-primary login w-100 mt-3" type="submit" onclick="disable(this)" value="Send recovery link">
 
@@ -27,4 +27,4 @@
 
 												</div>
 
-{% endblock %}
\ No newline at end of file
+{% endblock %}
diff --git a/files/templates/lost_2fa.html b/files/templates/lost_2fa.html
index 96d9ad553..d3252dd85 100644
--- a/files/templates/lost_2fa.html
+++ b/files/templates/lost_2fa.html
@@ -24,7 +24,7 @@
 
 																<label for="email" class="mt-3">Email</label>
 
-																<input autocomplete="off" class="form-control" id="password" type="email" pattern='([A-Za-z0-9]+[.-_])*[A-Za-z0-9]+@[A-Za-z0-9-]+(\.[A-Z|a-z]{2,})+' name="email" required=""{% if v %} value="{{v.email}}" disabled{% endif %}>
+																<input autocomplete="off" class="form-control" id="password" type="email" pattern='{{EMAIL_REGEX_PATTERN}}' name="email" required=""{% if v %} value="{{v.email}}" disabled{% endif %}>
 
 																<input autocomplete="off" class="btn btn-primary login w-100 mt-3" type="submit" onclick="disable(this)" value="Send recovery link">
 
@@ -32,4 +32,4 @@
 
 												</div>
 
-{% endblock %}
\ No newline at end of file
+{% endblock %}
diff --git a/files/templates/settings_security.html b/files/templates/settings_security.html
index 1a64460ff..afa629757 100644
--- a/files/templates/settings_security.html
+++ b/files/templates/settings_security.html
@@ -25,7 +25,7 @@
 						<label for="new-email" class="w-lg-25">Email</label>
 						<div class="w-lg-100">
 							<input autocomplete="off" class="form-control" id="new_email" {% if v.email %}placeholder="{{v.email}}"{% else %}placeholder="Your email"{% endif %}
-							aria-describedby="new_email" type="email" pattern='([A-Za-z0-9]+[.-_])*[A-Za-z0-9]+@[A-Za-z0-9-]+(\.[A-Z|a-z]{2,})+' name="new_email" required>
+							aria-describedby="new_email" type="email" pattern='{{EMAIL_REGEX_PATTERN}}' name="new_email" required>
 							{% if v.email and not v.is_activated %}
 								<div class="text-danger text-small mt-1" id="email-verify-text">Email not verified. You will not be able to recover your account with this email until you verify it. <u><a role="button" onclick="post_toast(this,'/verify_email');emailVerifyText()"class="text-danger">Verify now.</a></u></div>
 							{% elif not v.email %}
diff --git a/files/templates/sign_up.html b/files/templates/sign_up.html
index 05185ffa6..78cb8581e 100644
--- a/files/templates/sign_up.html
+++ b/files/templates/sign_up.html
@@ -94,7 +94,7 @@
 						<small class="d-inline-block text-muted ml-1">(optional)</small>
 
 						<input style="background-color: var(--gray-800)" autocomplete="off" class="form-control" id="email-register"
-						aria-describedby="emailHelpRegister" type="email" pattern='([A-Za-z0-9]+[.-_])*[A-Za-z0-9]+@[A-Za-z0-9-]+(\.[A-Z|a-z]{2,})+' name="email" readonly onfocus="if (this.hasAttribute('readonly')) {this.removeAttribute('readonly');this.blur();this.focus()}">
+						aria-describedby="emailHelpRegister" type="email" pattern='{{EMAIL_REGEX_PATTERN}}' name="email" readonly onfocus="if (this.hasAttribute('readonly')) {this.removeAttribute('readonly');this.blur();this.focus()}">
 
 						<label for="password-register" class="mt-3">Password</label>